11 2017 gravitational waves
Gravitational Wave Update
Ever since the first discovery of gravitational waves back in September 14th 2015, LIGO have been detecting more and more gravitational waves, ripples in the fabric of spacetime. In this video, we discuss the most recent gravitational wave detections.►Click here to subscribe: https://www.youtube.com/channel/UCB0fFWQLZ2oj-FaoDUG_wow?sub_confirmation=1
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“A Memory of Earth” by Markus Junnikkala
Gravitational Waves from merging neutron stars: the dawn of a new era in astronomy
Dr Paul Lasky and Dr Eric Thrane.
Have you heard the news of the detection of gravitational waves from a binary neutron star merger (GW170817) in the constellation of Hydra? This is a momentous event in physics and astronomy and will go down as one of the highlights of 21st century science.
Several researchers in the School of Physics & Astronomy at Monash University were involved in this work, including Dr Paul Lasky and Dr Eric Thrane who gave this Public Lecture.
3 reasons why Gravitational Waves are such a big deal!
The 2017 Nobel prize for physics was awarded for the breakthrough discovery of these awesome waves.
Gravitational Waves 101 | National Geographic
What are gravitational waves and how are they detected? These ripples in space-time, sometimes caused by neutron stars colliding, were recently recorded in the groundbreaking LIGO-Virgo observation.
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Big Picture Science: Too Big To Prove - 16 Oct 2017
Hosted by Seth Shostak and Molly Bentley. Celebrations are in order for the physicists who won the 2017 Nobel Prize, for the detection of gravitational waves. But the road to Stockholm was not easy. Unfolding over a century, it went from doubtful theory to daring experiments and even disrepute. 100 years is a major lag between a theory and its confirmation, and new ideas in physics may take even longer to prove.Why it may be your great, great grandchildren who witness the confirmation of string theory. Plus, the exciting insights that gravitational waves provide into the phenomena of our universe, beginning with black holes.And, physics has evolved - shouldn’t its rewards? A case for why the Nobel committee should honor collaborative groups rather than individuals, and the scientific breakthroughs it’s missed.Guests:Janna Levin - Physicist and astronomer at Barnard College at Columbia University, and the author of the story of LIGO, “Black Hole Blues and Other Songs from Outer Space.” http://jannalevin.com/ https://www.amazon.com/gp/product/0307958191/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0307958191&linkCode=as2&tag=arweal-20&linkId=274c0a34dfaf7c222bc43ee90c4aa8b3Roland Pease - BBC reporter, producer, and host of “Science in Action.” http://www.sciencemag.org/author/roland-peaseDavid Gross - Theoretical physicist, string theorist, University of California, Santa Barbara, Kavli Institute for Theoretical Physics, winner, 2004 Nobel Prize in Physics. https://www.kitp.ucsb.edu/grossDownload audio: http://radio.seti.org/episodes/too-big-to-proveRead more at http://radio.seti.org©2017 SETI Institute. All Rights Reserved
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An Ordinary Gamma-ray Burst with Extraordinary Consequences
On Aug. 17, the Gamma-ray Burst Monitor on NASA's Fermi Gamma-ray Space Telescope saw a short burst of gamma rays a smashup of neutron stars, marking the first-ever detection of light from a gravitational wave source. NASA scientists Colleen Wilson-Hodge and Tyson Littenberg explain what happened and what it means for science and discovery.
Gold and Platinum Produced by Neutron Star Collision - How Much?
UC Berkeley theoretical astrophysicist Daniel Kasen describes how the neutron star collision was discovered and what its debris is comprised of. --- Full story: https://www.space.com/38493-gravitational-waves-neutron-star-gold.htmlCredit: Video by Roxanne Makasdjian and Stephen McNally
Music: "Wonder Cycle" by Chris Zabriskie
Hubble Observes Source of Gravitational Waves
The NASA/ESA Hubble Space Telescope captured imagery of the source of the gravitational waves detection. Learn more about it from the Hubblecast video series. -- How far away was it? and more videos about it on Space.com: https://goo.gl/aAS5aCFull story: https://goo.gl/i9mMZ8Credit: ESA/Hubble
Ripples of Gravity, Flashes of Light
More Info: http://www.caltech.edu/news/ligo-and-virgo-make-first-detection-gravitational-waves-produced-colliding-neutron-stars-80082On Aug. 17, 2017, the Laser Interferometer Gravitational-wave Observatory (LIGO) and Virgo detected, for the first time, gravitational waves from the collision of two neutron stars. The event was not only “heard” in gravitational waves but also seen in light by dozens of telescopes on the ground and in space. Learn more about what this rare astronomy event taught us in a new video from LIGO and Virgo.Credit: LIGO-Virgo
Gravitational waves just helped scientists fill in a gap in the periodic table
Astronomers unlocked one of the universe's best-kept secrets.Since the '50s, scientists have wondered: Where do most of the elements in the periodic table come from?We know that elements like carbon, oxygen, and nitrogen are forged in the hot, dense cores of massive stars. But even stars aren't powerful enough to create heavy elements like silver, gold, and cesium.Turns out, the origin of 2/3 of the periodic table is unconfirmed. Now, a single event has given scientists a vital clue.Astronomers witnessed the collision of two neutron stars in a distant galaxy located 130 million light years from Earth. Neutron stars are ultra-dense stellar remnants. In fact, they're the densest matter in the universe. When two neutron stars merge, it creates an explosion more powerful than 1,000 supernovae. As the neutron stars spiraled in, they produced gravitational waves. LIGO and VIRGO first detected the waves on Aug. 17. Two seconds later, the Fermi space telescope measured a burst of high-energy radiation from the explosion.But these 2 measurements alone couldn't solve the puzzle. Astronomers needed to see the event in visible light.
The first to spot the event with their own eyes was a team with the Carnegie Institute for Science. Initially, the explosion they saw looked bright blue. But after four days it dimmed to a dull red.
The red color comes from a specific set of heavy elements that are produced by a process called the ligh r-process. But the blue color is a mystery. Some theorists suggest it's the result of a different set of elements called heavy r-process elements. But data from similar collisions are needed to be sure. This is the first time scientists have combined gravitational wave measurements with visible light. Who knows what new secrets may be unlocked next time?Read more: http://www.businessinsider.com/saiFACEBOOK: https://www.facebook.com/techinsider
"A storm in the shape of space and time" - Kip Thorne on gravitational waves
2016 Special Breakthrough Prize and 2017 Nobel Prize winner Kip Thorne on what gravitational waves will be able to tell us about black holes, the first billionth of a second of the Universe and the birth of the electromagnetic force.
"That's work for the future" - Rainer Weiss on gravitational wave astronomy
2016 Special Breakthrough Prize and 2017 Nobel Prize winner Rainer Weiss on what the detection of gravitational waves meant and what it means for the future.
Space News: First Dual Detection of a Gravitational Wave
Astronomy based on gravitational waves has been primarily done by the Laser Interferometer Gravitational Wave Observatory, known as LIGO. But recently, VIRGO, ran by the European Gravitational Observatory, was turned on to operational data gathering, and the first jointly detected gravitational wave has been found. Jared brings us this story=== CONTINUE THE CONVERSATION ===
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Scientists Win Nobel Prize For Detecting Gravitational Waves
Scientists Rainer Weiss, Kip Thorne, and Barry Barish won this year's Physics Nobel Prize for their efforts that helped lead to the first measurement of gravitational waves in 2015 by the LIGO team. The detection, which even defies Einstein's predictions, is considered to be the discovery of the century. This groundbreaking discovery will enable further research that will completely transform our understanding of the universe.
http://www.wochit.comThis video was produced by YT Wochit Tech using http://wochit.com
Scientists won the Nobel Prize for detecting gravitational waves
This year's Physics Nobel Prize goes to Rainer Weiss, Kip Thorne, and Barry Barish for their efforts that helped lead to the first measurement of gravitational waves in 2015 by the LIGO team.Read more: http://www.businessinsider.com/saiFACEBOOK: https://www.facebook.com/techinsider
Fourth gravitational wave detection - SpaceTime With Stuart Gary S20E76
Stream episodes on demand from www.bitesz.com (mobile friendly)This episode is bought with the help of brilliant.org….math and science done right. Learn to think like a scientist with their carefully curated games and puzzles. Have fun learning… and help support SpaceTime by using this link so they know you came from us… www.brilliant.org/stuartgary Thank you….
*Fourth gravitational wave detection
Astronomers have achieved a fourth gravitational wave detection of merging stellar mass black holes.
The new discovery was a combined effort between the existing LIGO Laser Interferometer Gravitational-Wave Observatory detectors in Livingston, Louisiana, and Hanford, Washington together with the New European VIRGO detector near Pisa in Italy.
*Discovery of a pitch black planet that eats light.
NASA's Hubble Space Telescope has observed a planet outside our solar system that looks as black as fresh asphalt because it eats light rather than reflecting it back into space. This light-eating prowess is due to the planet's unique capability to trap at least 94 percent of the visible starlight falling into its atmosphere.
^New Pluto mission proposal
NASA has received a new proposal for a surface mission to Pluto. The new plan would follow on from the highly successful New Horizons spacecraft which undertook an historic close flyby of Pluto its binary partner Charon, and their five moons back in July 2015.
*New Earth Observation satellite
The CSIRO has joined a project developing and operating one of the world’s most sophisticated Earth observation satellites. The 430 kilogram Synthetic Aperture Radar remote sensing satellite – known as the NovaSAR -- will launch later this year on an Indian PSLV rocket.
*NROL-42 spy satellite launched
An Atlas V rocket has blasted into orbit from the Vandenberg Air Force Base in California carry a secret National Reconnaissance Office satellite. The NROL-42 mission blasted off into black late-night skies which seemed more than appropriate for such a clandestine flight.
*Russian Navigation satellite launched
Russia has launched the latest member of its Glonass satellite navigation system. The Russian Military Air and Space Forces Soyuz 2.1b rocket carrying the Glonass-M satellite was launched from the Plesetsk Cosmodrome north of Moscow.
*The Science Report
A new clue in combating aggressive brain tumours.
A nine week expedition to the lost continent of Zealandia returns to port in Hobart.
A new study finds that teens get their bad moods from their friends.
New evidence claims modern humans were settling in the America’s some 13 thousand years ago.
People who tend to trust their intuition are more likely to hold inaccurate beliefs.
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LIGO and the Neutron Stars - COSI Science Now
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Gravitational waves in a nutshell: Gabriela González explains
In this very short video Gabriela González, Professor of Physics and Astronomy at Louisiana State University and former Spokesperson of the LIGO Scientific Collaboration, explains gravitational waves.To find out more see: https://plus.maths.org/content/stuff-happens-listening-universe
What are gravitational waves: Plus asks Gabriela González
In this video Gabriela González, Professor of Physics and Astronomy at Louisiana State University and former Spokesperson of the LIGO Scientific Collaboration, explains gravitational waves, what it was like to discover them, and what they might tell us about the Universe.To find out more see: https://plus.maths.org/content/stuff-happens-listening-universe
LIGO Detects Gravitational Waves
On September 14th, 2015, a ripple in the fabric of space, created by the violent collision of two distant black holes over a billion years ago, washed across the Earth. As it did, two laser-based detectors, 50 years in the making – one in Louisiana and the other in Washington State – momentarily twitched, confirming a century-old prediction by Albert Einstein and marking the opening of a new era in astronomy. Join some of the very scientists responsible for this most anticipated discovery of our age and see how gravitational waves will be used to explore the universe like never before.
Neutron Stars Collide in New LIGO Signal? | Space Time
LIGO may have just detected gravitational waves from the collision of two Neutron Stars. And go to http://curiositystream.com/spacetime
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Comment on Reddit: http://www.reddit.com/r/pbsspacetimeHelp translate our videos! https://www.youtube.com/timedtext_cs_...Previous Episode:
https://www.youtube.com/watch?time_continue=1&v=S4aqGI1mSqoLinks to the videos mentioned:
https://www.youtube.com/watch?v=xx4562gesw0&t=71Last year LIGO announced the detection of gravitational waves from the merger of two black holes. The science world went a little crazy. Only a few weeks ago a new rumour emerged: that LIGO had, for the first time, spotted gravitational waves from the collision of a pair of neutron stars. If it’s true, some long-standing astrophysical mysteries are about to be unlocked.Written and Hosted by Matt O’Dowd
Produced by Rusty Ward
Graphics by Kurt Ross
Assistant Editing and Sound Design by Mike Petrow
Made by Kornhaber Brown (www.kornhaberbrown.com)Special thanks to our Patreon Big Bang, Quasar and Hypernova Supporters:Big Bang
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Matthew O’ConnorThanks to our Patreon Gamma Ray Burst Supporters:
LISA Pathfinder switch off: Mission summary and beyond
Following 16 months of scientific effort, LISA Pathfinder completed its main mission on 30 June 2017, having demonstrated the technology needed to operate ESA’s future LISA space observatory to study gravitational waves – ripples in spacetime predicted by Albert Einstein.On 18 July, the spacecraft was shut down after being placed in a safe disposal orbit. The final command was sent from ESOC, ESA's European Space Operations Centre, at 19:57 CEST that evening.That day, scientists, mission controllers and the mission's management team gathered at ESOC, Darmstadt, Germany, for a presentation on the successes of the mission prior to the shut-down. This video was recorded between 16:00-18:00 CEST, and includes highlight presentations on the mission's achievements.Speakers:
- Rolf Densing, ESA Director of Operations
- Andreas Rudolph, ESA Head of Astronomy Missions Division
- Ian Harrison, ESA Spacecraft Operations Manager
- Paul McNamara, ESA LISA Pathfinder Project Scientist,
- Prof. Stefano Vitale, Principle Investigator for the LISA Pathfinder Mission, University of Trento
- Phil Barela, NASA/JPL project manager for LISA Pathfinder Disturbance Reduction System
- Colleen Marrese-Reading, JPL/Caltech
- Prof. Karsten Danzmann, Director at the Max-Planck Institute for Gravitational Physics, LISA Pathfinder Co-Principle InvestigatorMore about LISA Pathfinder:
http://sci.esa.int/lisa-pathfinder/More about LISA Pathfinder operations:
Gravitational waves--in 60 seconds
Gravitation wave theory. On my next break I'll do a quick video! But for now here's a quick sample of what I'll talk about... this blueberry fell into my cup of coffee and caused ripples. On the cosmic scale strong gravitational objects like rapidly spinning neutron stars or black holes orbiting one another can cause gravitational waves aka disruptions in space time in the form of RIPPLES that MOVE at the SPEED OF LIGHT. (**DISCLAIMER MY COFFEE DOES NOT MOVE AT THE SPEED OF LIGHT**) ☕️💡Woohoo!! I managed to get this on my lunch break haha!! Back to set! Hope you guys like this!!
Lisa Pathfinder end of Mission
The LISA Pathfinder mission ends on 18 July 2017 after a successful demonstration of the technology needed to detect gravitational waves in space. These vibrations in spacetime, first predicted by Einstein over a hundred years ago, are produced by huge astronomical events - such as two black holes colliding - and will allow scientists to open new windows into our universe.The success of the LISA Pathfinder mission has paved the way for the newly selected LISA mission which, when built and launched, will detect gravitational waves from objects up to a million times larger than our Sun.The film features interview soundbites from Dr Paul McNamara, LISA Pathfinder Project Scientist, at the European Space Agency’s European Technology and Science facility (ESTEC) in The Netherlands.More about LISA Pathfinder:
Gravitational Astronomy? How Detecting Gravitational Waves Changes Everything
We’ve now had multiple detections of gravitational waves, opening up a whole new field: gravitational astronomy. We talk about the detections made so far, and how we can see the Universe in a whole new way.Support us at: http://www.patreon.com/universetoday
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Chad Weber - email@example.comJust a couple of weeks ago, astronomers from Caltech announced their third detection of gravitational waves from the Laser Interferometer Gravitational-Wave Observatory or LIGO.As with the previous two detections, astronomers have determined that the waves were generated when two intermediate-mass black holes slammed into each other, sending out ripples of distorted spacetime.One black hole had 31.2 times the mass of the Sun, while the other had 19.4 solar masses. The two spiraled inward towards each other, until they merged into a single black hole with 48.7 solar masses. And if you do the math, twice the mass of the Sun was converted into gravitational waves as the black holes merged.These gravitational waves traveled outward from the colossal collision at the speed of light, stretching and compressing spacetime like a tsunami wave crossing the ocean until they reached Earth, located about 2.9 billion light-years away.The waves swept past each of the two LIGO facilities, located in different parts of the United States, stretching the length of carefully calibrated laser measurements. And from this, researchers were able to detect the direction, distance and strength of the original merger.Seriously, if this isn’t one of the coolest things you’ve ever heard, I’m clearly easily impressed.Now that the third detection has been made, I think it’s safe to say we’re entering a brand new field of gravitational astronomy. In the coming decades, astronomers will use gravitational waves to peer into regions they could never see before.Being able to perceive gravitational waves is like getting a whole new sense. It’s like having eyes and then suddenly getting the ability to perceive sound.This whole new science will take decades to unlock, and we’re just getting started.As Einstein predicted, any mass moving through space generates ripples in spacetime. When you’re just walking along, you’re actually generating tiny ripples. If you can detect these ripples, you can work backwards to figure out what size of mass made the ripples, what direction it was moving, etc.Even in places that you couldn’t see in any other way. Let me give you a couple of examples.Black holes, obviously, are the low hanging fruit. When they’re not actively feeding, they’re completely invisible, only detectable by how they gravitational attract objects or bend light from objects passing behind them.But seen in gravitational waves, they’re like ships moving across the ocean, leaving ripples of distorted spacetime behind them.With our current capabilities through LIGO, astronomers can only detect the most massive objects moving at a significant portion of the speed of light. A regular black hole merger doesn’t do the trick - there’s not enough mass. Even a supermassive black hole merger isn’t detectable yet because these mergers seem to happen too slowly.This is why all the detections so far have been intermediate-mass black holes with dozens of times the mass of our Sun. And we can only detect them at the moment that they’re merging together, when they’re generating the most intense gravitational waves.If we can boost the sensitivity of our gravitational wave detectors, we should be able to spot mergers of less and more massive black holes.But merging isn’t the only thing they do. Black holes are born when stars with many more times the mass of our Sun collapse in on themselves and explode as supernovae. Some stars, we’ve now learned just implode as black holes, never generating the supernovae, so this process happens entirely hidden from us.Is there a singularity at the center of a black hole event horizon, or is there something there, some kind of object smaller than a neutron star, but bigger than an infinitely small point? As black holes merge together, we could see beyond the event horizon with gravitational waves, mapping out the invisible region within to get a sense of what’s going on down there.We want to know about even less massive objects like neutron stars, which can also form from a supernova explosion. These neutron stars can orbit one another and merge generating some of the most powerful explosions in the Universe: gamma ray bursts. But do neutron stars have surface features? Different densities? Could we detect a wobble in the gravitational waves in the last moments before a merger?
GW170104 Update - Third Gravitational Wave Discovered
GW170104 Update. 3 billion years ago two black holes merged, forming ripples in the fabric of spacetime (gravitational waves) which have just been detected by physicists at LIGO. In this video, we discuss the recent detection of gravitational waves and just gravitational waves in general.►Click here to subscribe!: https://www.youtube.com/channel/UCB0fFWQLZ2oj-FaoDUG_wow
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►Share this video: https://youtu.be/hd-IucA9aIUIf you want to read more:
“Weathervane” by Blue Dot Sessions (CC BY-NC 4.0)
Black holes orbiting each other: https://youtu.be/B4XzLDM3Py8
Gravitational-Wave Sound: https://youtu.be/TWqhUANNFXw
Black holes orbiting each other (2): https://youtu.be/FGC_DM7ZgAk
Black holes orbiting each other (3): https://youtu.be/Zt8Z_uzG71o
Neutron stars orbiting each other: https://youtu.be/vw2sLcyV7Vc
G-Wave Simulation: https://youtu.be/z7pKXVkcDzs
Detector Simulation: https://youtu.be/FXlg3cr-q44
Circle Animation: (Go check out this channel) https://www.youtube.com/channel/UCilPIl-SwFbtsoH8WLnvlfA
Juno First Results from Jupiter; LIGO & Grav Waves Pt 3; Red Dwarf Flares; WFIRST Cost Troubles
This week, the first science results from the Juno spacecraft around Jupiter are in; the LIGO collaboration has discovered its third gravitational wave event; astronomers warn that flares from red dwarf stars may threaten any life on exoplanets in orbit around them; and NASA’s next big space observatory, the WFIRST mission, is facing a funding crisis.Links to this week's stories:
Juno First Results:
This week, the first science results from the Juno spacecraft around Jupiter are in; the LIGO collaboration has discovered its third gravitational wave event; astronomers warn that flares from red dwarf stars may threaten any life on exoplanets in orbit around them; and NASA’s next big space observatory, the WFIRST mission, is facing a funding crisis.LIGO Finds Third Black Hole Merger via Gravitational Waves:
https://www.ligo.caltech.edu/news/ligo20170601Red Dwarf Flares not good for life:
https://www.jpl.nasa.gov/news/news.php?release=2017-161NASA's WFIRST Gets a Financial Review:
https://www.nature.com/articles/n-12339962?WT.mc_id=TWT_NatureNews&sf86108167=1Consider supporting Space Fan News: https://patreon.com/DeepAstronomy to ensure you get current space & astronomy news each week!Space Fan News Theme by Stephen Dubois available for download here: http://ancienteyesmusic.comFollow DeepAstronomy on Twitter:
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Black Holes And Gravitational Waves Might Help Us Find Dark Matter
Evidence has shown that almost 85% of the matter in the universe is unaccounted for, but scientists now think they might have a way to fix that.Gravitational Waves Discovered! Here's What You Need To Know - https://youtu.be/72AQsQ2v5cA
Edge Of Space: Seeker VR - https://youtu.be/pCve1w1GFOs
Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxIWe got nominated for a People's Choice Webby! That means, you can help us win. Please, take a minute and vote for us here (thanks!):
https://vote.webbyawards.com/PublicVoting#/2017/film-video/general-film/vr-cinematic-or-pre-renderedRead More:Astronomers Are Attempting to Capture the First-Ever Photograph of a Black Hole
"A system of radio telescopes around the world is peering at the gigantic black hole at the center of the Milky Way, a behemoth called Sagittarius A*."Gravitational Waves vs. Gravity Waves: Know the Difference!
"Though you'll likely see many news headlines heralding the wonders of 'gravity wave science', do not fall into the trap! While both have gravity in common, gravity waves and gravitational waves are two very different beasts. Read on to find out why and then show off your gravitational smarts to your friends the next time you're down the pub."Black hole mergers and the QCD axion at Advanced LIGO
"In the next few years, Advanced LIGO (aLIGO) may see gravitational waves (GWs) from thousands of black hole (BH) mergers. This marks the beginning of a new precision tool for physics. Here we show how to search for new physics beyond the standard model using this tool."
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Hubble Detects a Rogue Supermassive Black Hole
The Hubble Space Telescope captured an image of a quasar named 3C 186 that is offset from the center of its galaxy. Astronomers hypothesize that this supermassive black hole was jettisoned from the center of its galaxy by the recoil from gravitational waves produced by the merging of two supermassive black holes.Read more: https://www.nasa.gov/feature/goddard/2017/gravitational-wave-kicks-monster-black-hole-out-of-galactic-coreCredit: NASA’s Goddard Space Flight Center/Katrina JacksonMusic credit: "Stealth Car" by Tom Sue [GEMA] and Zac Singer [GEMA]; Ed. Berlin Production Music/Universal Publishing Production Music GmbH GEMA; Berlin Production Music; Killer Tracks Production MusicThis video is public domain and along with other supporting visualizations can be downloaded from the Scientific Visualization Studio at: http://svs.gsfc.nasa.gov/12539If you liked this video, subscribe to the NASA Goddard YouTube channel: http://www.youtube.com/NASAExplorerOr subscribe to NASA’s Goddard Shorts HD Podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.htmlFollow NASA’s Goddard Space Flight Center
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Neutron Star Binary Mergers in the Era of Gravitational Wave Astronomy
Host: Edo Berger
Speaker: Brian MetzgerThe discovery of coalescing binary black holes by Advanced LIGO heralds the birth of a new field of research: gravitational wave (GW) astronomy. Coalescing neutron star (NS) binaries are among the new GW sources expected over the next few years. Maximizing the knowledge gained from this discovery will require identifying a coincident electromagnetic counterpart. One promising counterpart is an optical/IR flare, powered by the radioactive decay of neutron-rich elements synthesized in the merger ejecta (a so-called `kilonova'). Beyond providing a beacon to the GW chirp, kilonovae probe one of the dominant astrophysics sites for creating the heaviest elements in the Universe via rapid neutron capture (r-process) nucleosynthesis. I will describe how the lifetime of the hypermassive NS created during a NS-NS merger impacts the light curves and color of kilonovae, and how this affects the ongoing strategy of LIGO electromagnetic follow-up. A small fraction of short gamma-ray bursts are accompanied by long-lived X-ray emission, which may suggest that some mergers result in the formation of long-lived - or even indefinitely stable - NS remnants. If this association is confirmed, this would place stringent constraints on the equation of state of nuclear density matter.
Gravitational Waves from Neutron Stars: Victoria Kaspi at Perimeter Institute
Victoria Kaspi (McGill University) explains the effort to detect gravitational waves from neutron stars during her 2016 public lectures at Perimeter Institute, "The Cosmic Gift of Neutron Stars." Watch the full talk: https://youtu.be/6UG9hoeLcHo
Watch more Perimeter public lectures: https://insidetheperimeter.ca/discover/public-lectures/
Gravitational Waves Found!
A billion years ago, two black holes collided and merged, sending powerful ripples across the fabric of space-time. In 2015 those gravitational waves reached Earth and tickled the detectors of the Laser Interferometer Gravitational-Wave Observatory (LIGO). This first-ever detection of gravitational waves confirmed a long-standing prediction of Einstein's general relativity. It also was the culmination of a decades-long effort. Learn about the technical challenges of LIGO and the significance of this momentous event from one of the field's great pioneers, Rainer Weiss.Original music by Mark C. Petersen, Loch Ness Productions. Used with permission.Animations used under Creative Commons Attribution 4.0 International License.
LIGO Detection full movie
To celebrate the one-year anniversary of a discovery that changed the face of astronomy, on 7 February we feature the exclusive world premiere of a new documentary.LIGO Detection reveals what unfolded behind the scenes between the detection of merging black holes on 14 September 2015, and five months later when LIGO announced it to the world.Sign up to our newsletter and find out about exclusive content like this before anyone else: https://www.newscientist.com/registration/Read more about the discovery of gravitational waves: https://www.newscientist.com/ligodetection
Gravitational waves and spacetime
About the talk2016 saw the first ever detection of gravitational waves, 100 years after their initial theoretical prediction by Einstein and following 50 years of arduous experimental effort.However, even theoretically, the existence of gravitational waves was a controversial matter for much of the last century.Ultimately, the matter was settled (by the LIGO collaboration) by detecting the ripples created by colliding black holes (themselves highly controversial objects for much of the last century).The first detection of gravitational waves is, then, tightly bound up with the first observation of colliding (and merging) black holes.This opens up the possibility of a new era of physics, astronomy and cosmology in which the enormous energies released from such collisions, and the gravitational waves they generate, can be used as a new space-based laboratory probing aspects of the universe previously out of bounds.Professor Rickles will offer an historical survey of some of the early controversies, show how the new developments settle these, and consider new problems and prospects thrown up in the aftermath.About the speakerProfessor Dean Rickles is Professor of History and Philosophy of Modern Physics and Australian Research Council Future Fellow at the University of Sydney, where he is also co-director of the Centre for Time. He has written several books, including most recently A Brief History of String Theory and Philosophy of Physics.
Gravitational Wave Detection with Advanced LIGO
Matthew Evans (MIT)
The Real Reality Show: What's the big deal about gravitational waves?
In 2016 astronomers detected gravitational waves from the merger of two distant black holes. What do these mysterious signals mean for the universe?
How Scientists Reacted to Gravitational Wave Detection
I find the story of gravitational wave detection fascinating, particularly as it shows the deep skepticism of scientists. First, disbelieve.
The absurd physics of gravitational wave detection: https://youtu.be/iphcyNWFD10
Music from http://www.epidemicsound.com "Trapped in Cello 1"
The Absurdity of Detecting Gravitational Waves
A head-vaporizing laser with a perfect wavelength detecting sub-proton space-time ripples.
Huge thanks to Prof Rana Adhikari and LIGO: http://ligo.org
Here's how he felt when he learned about the first ever detection: https://youtu.be/ViMnGgn87dgThanks to Patreon supporters:
Nathan Hansen, Donal Botkin, Tony Fadell, Saeed Alghamdi, Zach Mueller, Ron Neal
Support Veritasium on Patreon: http://bit.ly/VePatreonA lot of videos have covered the general overview of the discovery of gravitational waves, what they are, the history of the search, when they were found but I wanted to delve into the absurd science that made the detection possible.When scientists want one megawatt of laser power, it's not just for fun (though I'm sure it's that too), it's because the fluctuations in the number of photons is proportional to their square root, making more powerful beams less noisy (as a fraction of their total). The smoothest mirrors were created not for aesthetic joy but because when you're trying to measure wiggles that are a fraction the width of a proton, a rough mirror surface simply won't do.Filmed by Daniel Joseph FilesMusic by Kevin MacLeod, http://www.incompetech.com "Black Vortex" (appropriately named)Music licensed from Epidemic Sound http://epidemicsound.com "Observations 2" (also appropriately named)
Cosmology: Galileo to Gravitational Waves - with Hiranya Peiris
In the last decade we have started to answer ageo-old questions like the age of the Universe and what it contains. Hiranya Peiris unravels the detective story, explaining what we know and how we know it.
Watch the Q&A: https://youtu.be/63JbKXfedRE
Subscribe for regular science videos: http://bit.ly/RiSubscRibeModern fundamental physics contains ideas just as revolutionary as those of Copernicus or Newton; ideas that may radically change our understanding of the world; ideas such as extra dimensions of space, or the possible existence of other universes.Testing these concepts requires enormous energies, far higher than what is achievable by the Large Hadron Collider at CERN, and in fact, beyond any conceivable Earth-bound experiments. However, at the Big Bang, the Universe itself performed the ultimate experiment and left clues and evidence about what was behind the origin of the cosmos as we know it, and how it is evolving. And the biggest clue is the afterglow of the Big Bang itself.In the past decade we have been able to answer age-old questions accurately, such as how old the Universe is, what it contains, and its destiny. Along with these answers have also come many exciting new questions. Join Hiranya Peiris to unravel the detective story, explaining what we have uncovered, and how we know what we know.Hiranya Peiris is Professor of Astrophysics in the Astrophysics Group in the Department of Physics and Astronomy at University College London. She is also the Principal Investigator of the CosmicDawn project, funded by the European Research CouncilShe is also a member of the Planck Collaboration and of the ongoing Dark Energy Survey, the Dark Energy Spectroscopic Instrument and the Large Synoptic Survey Telescope. Her work both delves into the Cosmic Microwave Background and contributes towards the next generation galaxy surveys that will yield deep insights into the evolution of the Universe.The Ri is on Twitter: http://twitter.com/ri_science
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Ultimate Gravitational Waves Explanation
I take a classic demonstration of warping spacetime and figure out how to demonstrate gravitational waves with the addition of some wheels and a drill.Discussion video about LIGO and gravitational waves:
https://www.youtube.com/watch?v=Vkfobw_PSSETom Scott's video about frame rate:
https://www.youtube.com/watch?v=uzP8FFKpwQ0Visit my blog here: http://stevemould.com
Follow me on twitter here: http://twitter.com/moulds
Buy nerdy maths things here: http://mathsgear.co.uk
The Future of Gravitational Waves | Space Time | PBS Digital Studios
Find out how gravitational waves are allowing us to unlock the secrets behind black hole formation and growth.Get your own Space Time tshirt at http://bit.ly/1QlzoBi
Tweet at us! @pbsspacetime
Email us! pbsspacetime [at] gmail [dot] com
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Support us on Patreon! http://www.patreon.com/pbsspacetimeHelp translate our videos! http://www.youtube.com/timedtext_cs_panel?tab=2&c=UC7_gcs09iThXybpVgjHZ_7gChallenge question solution
http://bit.ly/2aaj4YtFirst Detection of Gravitational Waves
https://www.youtube.com/watch?v=gw-i_VKd6WoNuclear Physics Challenge Question
https://www.youtube.com/watch?v=_NqbRcwWwPwOn September 14th, 2015 LIGO announced the first detection of a gravitational wave. This was hailed at the time as the dawn of gravitational wave astronomy. However that’s only true if the we ever detect another gravitational wave. Now we have. On December 26th LIGO again observed the merger of two different black holes.
Written and hosted by Matt O’DowdMade by Kornhaber Brown (www.kornhaberbrown.com)Calculation Details:
Stanford, SLAC X-ray Studies Could Make LIGO Gravitational Wave Detector 10x More Sensitive
In this video, Stanford’s Riccardo Bassiri explains his work at SSRL, which aims to better understand thermal noise in mirror coatings.
David Shoemaker | The Confirmation of Gravitational Waves | NEAF Talks
Filmed in HD April 2016Dr. David Shoemaker works on gravitational wave detection and leads the Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) project, delivering the detectors that made the groundbreaking observation of gravitational waves in September 2015. He has been involved in the field for over two decades, spending most of that time at MIT where he is presently Senior Research Scientist at MIT’s Kavli Institute for Astrophysics and Space Research. He is also a Visiting Associate at Caltech and serves as the Director of the MIT Laser Interferometer Gravitational-wave Observatory (LIGO) Laboratory.Who is David Shoemaker?
DR. DAVID SHOEMAKER, is the Senior Research Scientist at MIT and Director of the Advanced LIGO project. First working in the domain of Cosmic Microwave Background on the COBE satellite, he earned degrees in physics from MIT and the Université de Paris. He has undertaken research at MIT, Max Planck in Garching Germany, and Orsay France, having helped launch gravitational wave detector projects in Germany, France, and the United States. His work on Advanced LIGO stretches from the first concepts in the mid-1990s to the delivery of the instruments in March 2015. Shoemaker is now involved in data quality oversight for the LIGO Scientific Collaboration and the development of future gravitational wave detectors on the ground and in space. He has testified before Congress on the LIGO effort and how it is expected to benefit science and innovation in the future, and is an advocate for scientific exploration. Shoemaker is a Fellow of the American Physical Society.NEAF Talks brings you the best from the annual NEAF Astronomy & Space conference which is held just outside of New York City at the RCC campus of the State University of NY. The Northeast Astronomy Forum is in its 25th year and is a world renowned symposium which annually searches the globe for the most relevant personalities who are making space, science and astronomy history today. Now through NEAF Talks online, these outstanding lectures are available to classrooms, universities, professionals, and the world at-large free of charge. Visit RocklandAstronomy.com\NEAF for more information or to learn how to see NEAF live.
NEAF Talks- supporting science and astronomy education for a quarter century, now free to the world via the web.
Gravitational Waves Explained Using Stick Figures
GO HERE NOW: https://www.einsteinathome.org
Einstein@Home wikipedia page: https://en.m.wikipedia.org/wiki/Einstein@HomeThis video is about gravitational waves in the weak field limit as discovered by the LIGO collaboration, explained by parallels to electromagnetic radiation, sound waves, water waves, etc. I want to see Cat LIGO ASAP!Thanks to everyone who supports MinutePhysics on Patreon! http://www.patreon.com/minutephysicsLink to Patreon supporters here: http://www.minutephysics.com/supporters.htmlMusic by Nathaniel Schroeder, http://www.soundcloud.com/drschroederREFERENCESLinearized Einstein Equations: http://web.phys.ntnu.no/\~mika/week10.pdfGravitational Wave Detection: http://iopscience.iop.org/article/10.1088/0034-4885/72/7/076901/metaLIGO Mirror Test mass suspension/isolation: http://www.gwoptics.org/hardware\_hacks/mirror\_suspension/Power radiation from Gravitational waves of Earth-Sun system: https://en.wikipedia.org/wiki/Gravitational\_wave#Power\_radiated\_by\_orbiting\_bodiesPower radiation of electromagnetic waves from accelerating charge (Larmor formula): https://en.wikipedia.org/wiki/Larmor\_formulaStrength & Directionality of Radiation from a binary source (p 12): http://www.aei.mpg.de/\~schutz/download/lectures/AzoresCosmology/Schutz.AzoresLecture2.pdfNewtonian limit of GR, Metric as gravitational potential: https://ned.ipac.caltech.edu/level5/March01/Carroll3/Carroll4.htmlMinutePhysics is on Google+ - http://bit.ly/qzEwc6
And facebook - http://facebook.com/minutephysics
And twitter - @minutephysicsMinute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!Created by Henry Reich
What Are Gravitational Waves?
Do you want to know what gravitational waves are? Well if you do, you’re in the right place! In this episode of "EXPLAINED!" David explains what gravitational waves are!---What are Gravitational Waves? 0:16
Who came up with the idea of Gravitational Waves? 0:38
When were Gravitational Waves detected? 0:55
Who detected Gravitational Waves? 1:01
What produced the Gravitational Waves? 1:20---Twitter: https://www.twitter.com/AstroFocus_Subscribe to AstroFocus: https://www.youtube.com/channel/UCB0fFWQLZ2oj-FaoDUG_wowShare this video: https://youtu.be/07UxdyYwF2YExplained in 2 Minutes Playlist: https://www.youtube.com/playlist?list=PL2uWgJMRclM8PqBPz11tZEm2CeEGCX29m---Images and videos used:Black holes orbiting each other (1):
https://youtu.be/biwlfcljx9QGravitational waves released:
https://youtu.be/B4XzLDM3Py8Big bang animation:
https://youtu.be/M3vTp2O-MWYNeutron star animation:
https://youtu.be/yZiSuQSvB4YBlack holes orbiting each other (image):
http://www.capitalotc.com/entering-the-era-of-gravitational-wave-astronomy-black-holes-mergers/210294/Ripples on water:
https://youtu.be/RLn1ErhxOPoImage of Albert Einstein (1):
https://youtu.be/0Yq39PLnikEImage of Albert Einstein (2):
https://youtu.be/XA6l97M6PeEImage of warped spacetime:
http://www.space.com/17661-theory-general-relativity.htmlImage of LIGO detector in Livingston, Louisiana:
https://www.ligo.caltech.edu/LAImage of LIGO detector in Hanford, Washington:
http://www.space.com/31895-gravitational-wave-announcement-watch-live.htmlBlack holes orbiting each other (2):
https://youtu.be/Zt8Z_uzG71o---Music used:“Weathervane” by Blue Dot Sessions (CC BY-NC 4.0)
http://freemusicarchive.org/music/Blue_Dot_Sessions/CloudCover/Weathervane---Hopefully this video will help you understand what gravitational waves are!
Gravitational Waves: A New Era of Astronomy Begins
On September 14th, 2015, a ripple in the fabric of space, created by the violent collision of two distant black holes over a billion years ago, washed across the Earth. As it did, two laser-based detectors, 50 years in the making – one in Louisiana and the other in Washington State – momentarily twitched, confirming a century-old prediction by Albert Einstein and marking the opening of a new era in astronomy. Join some of the very scientists responsible for this most anticipated discovery of our age and see how gravitational waves will be used to explore the universe like never before.This program will feature exclusive footage from director Les Guthman’s upcoming documentary chronicling the drama of the gravitational waves discovery.Subscribe to our YouTube Channel for all the latest from WSF.
Visit our Website: http://www.worldsciencefestival.com/
Like us on Facebook: https://www.facebook.com/worldscience...
Follow us on twitter: https://twitter.com/WorldSciFestOriginal Program Date: June 4, 2016
MODERATOR: Brian Greene
PARTICIPANTS: Barry Barish, Nergis Mavalvala, Frans Pretorius, David Shoemaker, Rai WeissBrian Greene's Introduction - 00:15Einsteins prediction of bending light - 5:58Participant Introductions - 9:55Chapter one: The Discovery - 11:37The rumors of a gravitational wave - 14:40How LIGO almost missed the gravitational wave - 19:16BICEP2 and getting it right - 22:34Could we have recreated this experiment without a gravitational wave? - 27:09Chapter two: The Numerical Relativity - 29:30So you detect a gravitational wave, what does that mean? - 31:58Black holes vs Neutron stars - 48:12Chapter three: Detection - 54:31How LIGO Laboratory works - 1:04:06How do you shield the laser from the other waves in the world? - 1:09:00The move from LIGO to Advanced LIGO 1:12:24Giving credit to Barry Barish - 1:20:04Chapter four: The Future of LIGO 1:24:40eLISA and a space interferometer - 1:27:40Mathematically solving the future of colliding black holes 1:32:00
We Found Gravitational Waves...AGAIN!!!
Advanced LIGO detectors have identified a second gravitational wave event occurring from the merger of two black holes.Gravitational Waves Discovered! Here's What You Need To Know - http://bit.ly/24PgHwC
Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxIRead More:Gravitational Waves Detected 100 Years After Einstein's Prediction
"For the first time, scientists have observed ripples in the fabric of spacetime called gravitational waves, arriving at the earth from a cataclysmic event in the distant universe. This confirms a major prediction of Albert Einstein's 1915 general theory of relativity and opens an unprecedented new window onto the cosmos."Here's the first person to spot those gravitational waves
"Today, physicists working with the Laser Interferometer Gravitational-Wave Observatory (LIGO) announced that after decades of effort they had detected gravitational waves-ripples in spacetime itself-set off by the explosive collision of two massive black holes."Data release for event GW150914
"This page has been prepared by the LIGO Scientific Collaboration (LSC) and the Virgo Collaboration to inform the broader community about a confirmed astrophysical event observed by the gravitational-wave detectors, and to make the data around that time available for others to analyze."
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Merging Black Holes, and their gravitational waves
A black hole is a massive object whose gravitational field is so intense that no light (electromagnetic radiation) can escape it. When two orbiting black holes merge, a massive amount of energy is released in the form of jets. Meanwhile, the movement of these massive bodies disturbs the fabric of space-time around them, sending ripples of gravitational waves radiating outward.As two super-massive black holes spiral around each other and eventually merge, they create gravitational waves.Video Credit: NASA; Dana Berry (Skyworks Digital): Lead Animator
Michael McClare (HTSI): Writer. More at http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=10140
Gravitational Waves 101: How to Hear the Universe
In 2015 scientists working at the Laser Interferometer Gravitational-Wave observatory, or LIGO, detected gravitational waves for the first time. But how did they do it? What is a gravitational wave? And why is confirming something that Albert Einstein predicted a hundred years ago one of the greatest scientific achievements of the past century?HUGE Thanks to the LIGO team and the National Science Foundation for funding amazing projects like LIGO
https://www.ligo.caltech.edu/The University of Chicago LIGO group is comprised of Daniel Holz, Ben Farr, Hsin-Yu Chen, and Zoheyr Doctor, and they all contributed to the results described in this video.►Subscribe: http://youtube.com/thegoodstuff
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Sign up for our mailing list: http://eepurl.com/bnSOcHThe Good Stuff is a proud member of the PBS Digital Studios family__________________________________________________________________Music by:Rob Scallon
https://www.youtube.com/robscallonTodd Umhoefer (Old Earth)
http://oldearthcontact.bandcamp.com/Images & Video Credits:LIGO video and black hole simulations courtesy of LIGO and CaltechSpaceballs, MGM, 1987
Star Wars: A New Hope, 20th Century Fox, 1977
Star Trek: First Contact, Paramount Pictures, 1996https://commons.wikimedia.org/wiki/File:Einstein_1921_by_F_Schmutzer_-_restoration.jpg
Ferdinand Schmutzer [Public domain], via Wikimedia Commonshttps://commons.wikimedia.org/wiki/File:SN1994D.jpg
NASA/ESA [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commonshttps://www.sciencenews.org/article/gold-seen-neutron-star-collision-debrishttps://commons.wikimedia.org/wiki/File:Black_hole_Cygnus_X-1.jpg
By NASA/CXC/M.Weiss (http://www.sun.org/images/black-hole-cygnus-x-1) [Public domain], via Wikimedia Commonshttp://wuwm.com/post/scientists-aflutter-over-gravitational-wave-rumors#stream/0
By H. J. Detouche (http://www.astro.unipd.it/insap6/mainPage.html) [Public domain], via Wikimedia Commonshttps://www.staff.science.uu.nl/~gent0113/astro/images/alexandria_observatory.jpg