Should we put telescopes on Mars? | Subscriber Q&A
Assuming that we've figured out how to ship all the materials to Mars and build stuff there - would it be a good idea to build telescopes on Mars? Can we actually do astronomy from the surface looking through Mars's atmosphere?
This was a question I got asked by a subscriber on Twitter - if you have questions you want me to answer either tweet them to me (https://twitter.com/drbecky_) or leave them in the comments below. I'm more likely to see stuff on Twitter!
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My sister made the frame in the background as a present when I passed my PhD. She does commissions: https://megansmethurstdesign.wordpress.com/work/
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------
Dr. Becky Smethurst is a Junior Research Fellow at Christ Church at the University of Oxford.
Twitter: https://twitter.com/drbecky_
http://drbecky.uk.com
Over 300,000 more galaxies detected
Scientists using the Low-Frequency Array (LOFAR) telescope in the Netherlands have detected more than 300,000 galaxies that couldn't be seen by previous technology. CBSN's Tanya Rivero has more.
Scientists Discover Another Unusual Galaxy Nearby - Bedin 1
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Hello and welcome! My name is Anton and in this video, we will talk about the discovery of an unusual galaxy Bepin 1 right in our cosmic neighborhood.
Check out the paper here: https://academic.oup.com/mnrasl/article/484/1/L54/5288002
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OVERVIEW | Episode 4: Meet The Virgin Galactic Spaceship Pilots
How do you become a pilot for Virgin Galactic? Watch what inspires our spaceship pilots to do what they do.
Has Saturn Had More than One Ring System?
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Saturn’s rings might only be around a hundred million years old, billions of years younger than some astronomers have suspected, and they might not be the only rings the planet has ever had.
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Sources:
https://solarsystem.nasa.gov/news/794/nasa-research-reveals-saturn-is-losing-its-rings-at-worst-case-scenario-rate/
https://www.nasa.gov/feature/jpl/groundbreaking-science-emerges-from-ultra-close-orbits-of-saturn
http://science.sciencemag.org/content/362/6410/eaat2382
https://www.sciencenewsforstudents.org/article/saturns-rings-might-be-shredded-moons
https://www.universetoday.com/19288/uranus-rings/
http://science.sciencemag.org/content/362/6410/eaat2236
http://science.sciencemag.org/content/362/6410/eaat3185
https://www.sciencedirect.com/science/article/pii/S0019103518302999?via%3Dihub
https://www.nature.com/news/2010/101005/full/news.2010.515.html
https://solarsystem.nasa.gov/news/13021/put-a-ring-on-it/
Images:
https://en.wikipedia.org/wiki/File:Saturn_eclipse.jpg
https://photojournal.jpl.nasa.gov/catalog/PIA12567
https://www.jpl.nasa.gov/video/details.php?id=1464
https://commons.wikimedia.org/wiki/File:Subaru,_Keck_and_IRTF.jpg
https://solarsystem.nasa.gov/resources/17849/translucent-arcs/?category=planets_saturn
https://svs.gsfc.nasa.gov/12672
https://commons.wikimedia.org/wiki/File:8423_20181_1saturn2016.jpg
https://photojournal.jpl.nasa.gov/catalog/PIA01997
https://photojournal.jpl.nasa.gov/catalog/PIA02963
https://photojournal.jpl.nasa.gov/jpeg/PIA22766.jpg
https://commons.wikimedia.org/wiki/File:Saturn_-_December_3_2005_(38019132542).png
https://solarsystem.nasa.gov/resources/605/keck-telescope-views-of-uranus/?category=planets_uranus
https://solarsystem.nasa.gov/resources/17848/group-portrait/?category=planets_saturn
https://commons.wikimedia.org/wiki/File:Ringworld_Waiting.jpg
https://photojournal.jpl.nasa.gov/catalog/PIA02873
https://photojournal.jpl.nasa.gov/catalog/PIA03550
https://en.wikipedia.org/wiki/File:Infrared_Ring_Around_Saturn.jpg
Thumbnail: https://solarsystem.nasa.gov/planets/saturn/in-depth/
HiClip: A Recent Impact Site in Noachis Terra
Rather than a single impact crater, we see multiple impacts like a shotgun blast, suggesting that the impactor broke up in the atmosphere on entry.
(Audio: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.)
NASA/JPL/University of Arizona
https://uahirise.org/ESP_057984_1490
Three ways the universe could end - Venus Keus
Our universe started with the Big Bang, but how will it end? Explore cosmologists’ three possible scenarios: the Big Crunch, the Big Freeze and the Big Rip.
--
We know about our universe’s past: the Big Bang theory predicts that all matter, time and space began about 14 billion years ago. And we know about the present: scientists’ observations of galaxies tell us that the universe is expanding at an accelerated rate. But what about the future? Do we know how our universe is going to end? Venus Keus explores cosmologists’ three possible scenarios.
Lesson by Venus Keus, directed by Antimatter Studio.
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We May Have Just Unlocked a Secret to How Life Started on Earth
Scientists have been trying to piece together the chemical recipe for how the building blocks of life originated. Now, they may have found it.
A New Genetic Alphabet Is Creating Things Nature Has Never Seen - https://youtu.be/X3uHfRVjVVI
Read More:
Chemists find a recipe that may have jump-started life on Earth
http://www.sciencemag.org/news/2018/10/chemists-find-recipe-may-have-jump-started-life-earth
“Now, a team of researchers has shown for the first time that a set of simple starting materials, which were likely present on early Earth, can produce all four of RNA’s chemical building blocks.”
The Origins of the RNA World
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3331698/
“The general notion of an “RNA World” is that, in the early development of life on the Earth, genetic continuity was assured by the replication of RNA and genetically encoded proteins were not involved as catalysts. There is now strong evidence indicating that an RNA World did indeed exist before DNA- and protein-based life.”
The Secret of How Life on Earth Began
http://www.bbc.com/earth/story/20161026-the-secret-of-how-life-on-earth-began
“This is the story of our quest to discover our ultimate origin. It is a story of obsession, struggle and brilliant creativity, which encompasses some of the greatest discoveries of modern science. The endeavour to understand life's beginnings has sent men and women to the furthest corners of our planet.”
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Open Space 27: Live QA with Dr. Kimberly Cartier
Dr. Kimberly Cartier is an exoplanet researcher, reporter for Eos Magazine and one of my co-hosts with the Weekly Space Hangout. Join us for a conversation about space, astronomy and the search for extrasolar planets.
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Big Picture Science: Radical Cosmology - Feb 18, 2019
Ideas before their time. 400 years ago, some ideas about the cosmos were too scandalous to mention. When the Dominican friar Giordano Bruno suggested that planets existed outside our Solar System, the Catholic Inquisition had him arrested, jailed, and burned at the stake for heresy.
Today, we have evidence of thousands of planets orbiting other stars. Our discovery of extrasolar planets has dramatically changed ideas about the possibility for life elsewhere in the universe.
Modern theories about the existence of the ghostly particles called neutrinos or of collapsed stars with unfathomable gravity (black holes), while similarly incendiary, didn’t prompt arrest, of course. Neutrinos and black holes were arresting ideas because they came decades before we had the means to prove their existence.
Hear about scientific ideas that came before their time and why extrasolar planets, neutrinos, and black holes are now found on the frontiers of astronomical research.
Guests:
Alberto Martínez https://liberalarts.utexas.edu/history/faculty/aam829 – Professor of history, University of Texas, Austin, and author of Burned Alive: Giordano Bruno, Galileo & the Inquisition https://www.amazon.com/gp/product/1780238967/ref=as_li_tl?ie=UTF8&tag=arweal-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=1780238967&linkId=a2467da5744402bda9f93126c6efba9d
Anne Schukraft http://home.fnal.gov/~aschu – Associate scientist, Fermilab National Accelerator Laboratory
Ephraim Fischbach https://www.physics.purdue.edu/people/faculty/ephraim.php – Professor of physics and astronomy, Purdue University
Chris Impey http://chrisimpey-astronomy.com/ – Professor of astronomy, University of Arizona, and author of Einstein’s Monsters: The Life and Times of Black Holes https://www.amazon.com/gp/product/1324000937/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=1324000937&linkCode=as2&tag=arweal-20&linkId=e4ed741a4d740a34119b22204c3150a0
Descripción en español: http://musingsfromthecosmicshore.net/2019/02/17/programa-de-radio-de-seti-institute-cosmologia-radical/
Download audio: http://bigpicturescience.org/episodes/radical-cosmology
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Air Travel and The Space Race: Crash Course History of Science #37
Like the Industrial or the Einsteinian Revolution, the Space Race is a trope, or way of organizing historical events into a story that makes sense. In this story, the two great powers that emerged after World War Two—the United States and Soviet Union—competed to send communications satellites, dogs, and people into outer space…
***
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NASA Twin Study Finds That Some Genes Change In Space
According to Mother Nature Network, a NASA study found that prolonged time in space changes our genes.
The first-of-its-kind study compared two astronauts, who happen to be twins.
While now-retired astronaut Mark Kelly stayed on Earth, his brother Scott Kelly spent a year in orbit on the International Space Station.
When he returned to Earth, NASA compared Scott's results to Mark's results.
About 7-percent of Scott's genes changed, while his immune system was in a hyper-alert state.
The specific genes that had lasting changes correlate with the immune system, bone formation, DNA repair, hypoxia, and hypercapnia.
The last two are related to a deficiency in oxygen reaching tissues, and excessive carbon dioxide in the bloodstream.
https://www.mnn.com/earth-matters/space/blogs/nasa-twin-study-space-travel-changes-human-DNA
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M109 - Barred Spiral Galaxies - Deep Sky Videos
Dr Becky Smethurst is talking about M109 - an unusual barred spiral galaxy. More links and info in full description ↓↓↓
See our M98 video (peanuts in galaxies): https://youtu.be/Iiuz9pIkGWA
Playlist of all Messier objects we've covered: http://bit.ly/MessierObjects
The de Vaucouleurs Atlas of Galaxies: https://amzn.to/2TUIiyH
A Morphological and Statistical Analysis of Ansae in Barred Galaxies: https://arxiv.org/abs/0709.0814
Building the peanut: simulations and observations of peanut-shaped structures and ansae in face-on disk galaxies: https://arxiv.org/abs/1712.00430
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Video by Brady Haran
A Realistic Look At The Gateway Foundation & Von Braun Station
The Gateway Foundation is a handful of space engineers who want to pursue building a giant station in low earth orbit, a station like the one described by Werner von Braun in the 1950's. However they have a long way to go and their funding mechanism has many hurdles to cross before it could be used.
https://gatewayspaceport.com/
HiClip: Almost Like Water
The ancient lava in this image appears to have flowed smoothly around obstructions, almost like water, forming streamlined islands.
(Audio: www.tregibbs.com. Black and white images are 5 km across; enhanced color images are 1 km.)
NASA/JPL/University of Arizona
https://uahirise.org/ESP_057978_1875
Moon Camp Challenge - Design your Moon Camp
Mark Chester, Autodesk Academic Partner and 3D Design Expert, will show how to use 3D modelling software to help you design your camp on the Moon.
One single webinar will be provided for teachers and teams applying to Moon Camp’s
Category 1 - using Tinkercad
Category 2 and 3 - using Fusion 360
For more information about the Moon Camp Challenge visit: www.esa.int/mooncamp .
Design Resource Pages:
Tinkercad Resource Page: http://tiny.cc/Tinkercad
Tinkercad Classroom Set Up for students under 13: http://tiny.cc/TinkercadClassroom
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Create account & download Fusion 360 software: http://tiny.cc/Fusion360_download
Challenge Entry Pages:
Category 1 (up to 12 years old): http://tiny.cc/MoonCamp_Cat1
Category 2 (13 to 18 years old): http://tiny.cc/MoonCamp_Cat2
Post-Secondary - Category 3 (19 to 25 years old): http://tiny.cc/MoonCamp_Cat3
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Are We Really Alone In The Universe? | Answers With Joe
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The Rare Earth Hypothesis is the idea that the conditions that created life on Earth are so specific to this planet that it can't happen anywhere else in the universe. Here's some of the evidence to back this up.
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====================
The Rare Earth Hypothesis something of a solution to the Fermi Paradox that points to several characteristics of Earth that may be required to keep life stable long enough to become intelligent, and these several traits may be incredibly unique in the universe, making intelligent life in the universe incredibly rare.
Some of these factors include:
Special place in the Milky Way
It turns out our position in the Milky way might be beneficial as the low star density prevents other stars from messing up our orbits.
The right type of star.
Our sun is a G2 main sequence star that remains stable for a very long time.
Rocky planet in the Goldilocks zone
Earth is just the right distance from the sun to form liquid water.
Magnetic Shield
We're the only rocky planet with a magnetic shield protecting us from solar radiation.
Jupiter
Jupiter and the outer gas giants protect us from asteroid and comet impacts, and this might be rare in the universe.
Tectonic activity
We're the only planet with tectonic plates constantly rebuilding the crust.
LINKS LINKS LINKS:
Gigapixels of Andromeda video:
https://www.youtube.com/watch?v=udAL48P5NJU&t=4s
My previous video on the Fermi Paradox:
https://youtu.be/3Z9NtQFeyN8
https://en.wikipedia.org/wiki/Rare_Earth_hypothesis
https://www.space.com/39390-alien-planets-reveal-our-strange-solar-system.html
https://www.space.com/42008-first-exomoon-discovery-kepler-1625b.html
Climate change: the inter-generational challenge - BBC Newsnight
Is climate change becoming the big inter-generational battle of our time?
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Polling from the UK and the US suggests that the younger generation are considerably more worried about climate change than previous generations. But are the positions of young and old at odds with one another? Our economics editor Ben Chu finds out.
In the studio, Katie Razzall is joined by Anna Taylor from the Student Climate Network, former Energy and Climate Change Secretary Sir Ed Davey and director of think tank Freer, Rebecca Lowe.
Newsnight is the BBC's flagship news and current affairs TV programme - with analysis, debate, exclusives, and robust interviews.
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Why Venus is so similar to Earth!!
Here I discuss a new finding on Venus' #atmosphere and why it's more similar to #Earth than we thought!
And how this finding was made using a #SuperComputer made for Earth simulations but worked for #Venus and was proven using the spacecraft #Akatsuki !!!
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Chang'e-4 Lunar Probe
After 26 days in space, China's Chang’e-4 lunar probe has achieved several historic milestones, including sending back the first close images of the moon's far side and leaving the first print of the probe on that area of the moon.
We Were Wrong About the Shape of Our Own Galaxy!
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Hello and welcome! My name is Anton and in this video, we will talk about the new discovery of the shape of our own galaxy the Milky Way
Check out the study here: https://arxiv.org/pdf/1902.00998.pdf
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Observing the Cosmos (with Fraser Cain)
Today we're joined by Fraser Cain of Universe Today to discuss the future of astronomy, how you can get started in it as a hobby, and a wide-range of other topics.
Check out Fraser's new book: https://www.universetoday.com/139658/our-book-the-universe-today-ultimate-guide-to-viewing-the-cosmos/
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Opportunity's Last Message to NASA & Remembering Oppy- The Case for Mars 36
What was the Opportunity rover last message to NASA? What great achievements did Opportunity make?
NASA's Opportunity Rover (part of the Mars Exploration Rover Mission) has recently reached the end of its journey. After almost half a year of trying to communicate with the rover, NASA decided to end the Mars rover's mission. In this video, we discuss the various locations Opportunity visited, and some of the key discoveries it and the Spirit rover made on the surface of Mars. Lastly, we talk about the impact these rovers had back here on Earth.
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Heading Home by Nekzlo @nekzlo
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#Opportunity #Oppy
Time to Go Back to the Moon? Fmr. NASA Astronaut’s Thoughts
Fmr. NASA astronaut Mike Massimino tells Space.com contributor Chelsea Gohd his thoughts on humans returning to the moon. -- Read More: https://www.space.com/back-to-moon-astronaut-mike-massimino.html
Scientists Impaled Space Junk With a Harpoon, Here’s Why That Matters
Space junk threatens to entomb Earth in an artificial bubble, but promising solutions for cleaning up our trash are on the horizon.
Watch More Space Crafts! | https://bit.ly/2GqH0aO
Read More:
The Space Junk Problem Is About To Get A Whole Lot Gnarlier
https://www.wired.com/story/the-space-junk-problem-is-about-to-get-a-whole-lot-gnarlier/
“Space junk is the colloquial name for orbital bits that do nothing useful: spent rockets, fragments splayed by collisions and degradation, old satellites no one cares about anymore. In total, they amount to millions of pieces of debris, many of which are large enough to seriously ding satellites and the International Space Station.”
The quest to conquer Earth’s space junk problem
https://www.nature.com/articles/d41586-018-06170-1
“Zombie satellites, rocket shards and collision debris are creating major traffic risks in orbits around the planet.”
A satellite with a harpoon, net and drag sail to capture space junk is in orbit and will be tested soon
https://phys.org/news/2018-06-satellite-harpoon-net-capture-space.html
"The purpose of the RemoveDebris spacecraft is to demonstrate the effectiveness of debris nets and harpoons at capturing and removing space debris from orbit."
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What is a Supermoon or a Snowmoon coming on February 19th, 2019 ?
What is a Supermoon or a Snowmoon coming on February 19th, 2019 ?
In this video I will try to explain what is a supermoon or a snowmoon, how close Moon comes to the Earth, how it got it's name.
Enjoy watching and learning always! Clear Skies.
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Black Holes can SPIN?!?
Most sources talk about Schwarzschild black holes, but those don't spin. Most are what we call Kerr black holes, or rotating black holes, surrounded by a region called an ergosphere. The spacetime around them is not only stretched, but also twisted, leading to some strange phenomena.
________________________________
VIDEO ANNOTATIONS/CARDS
Black Hole Playlist:
https://www.youtube.com/playlist?list=PLOVL_fPox2K-zpTeryROTkmzzsMssSMWp
What is Electric Charge?
https://youtu.be/gvX29HPmBEI
The Ultimate Guide to Relativity:
https://youtu.be/FdWMM6aXpYE
________________________________
RELATED YOUTUBE VIDEOS
Veritasium on Spinning Black Holes:
https://youtu.be/fu3645D4ZlI
Kurzgesagt on Spinning Black Holes:
https://youtu.be/ulCdoCfw-bY
Fraser Cain on Spinning Black Holes:
https://youtu.be/SMrwHnow3hk
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OTHER SOURCES
http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NAME+Sgr+A*
https://arxiv.org/abs/1410.2130
http://notizblock.yukterez.net/viewtopic.php?p=225/
http://www.madore.org/~david/math/kerr.html
https://www.nature.com/news/spin-rate-of-black-holes-pinned-down-1.13512
https://www.nasa.gov/mission_pages/nustar/multimedia/pia16696.html
http://www.astro.ucla.edu/~ghezgroup/gc/journey/smbh.html
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LINKS TO COMMENTS
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Supermassive Black Hole:
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Black Hole Eating:
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#blackholes #astronomy #generalrelativity
How do we find new planets?
It’s possible to see many of the planets in our solar system just by looking up at the night sky—but only those that are largest and closest to our Sun. Astrophysicist Jackie Faherty explains a few of the more advanced astrometric techniques used to detect exoplanets, objects that orbit distant stars.
If you’re curious how we find new dinosaur fossils back here on Earth, watch this week’s Dinosaur video: https://youtu.be/TG_p3CPFJmY
#Exoplanet #Astronomy #SolarSystem #SpaceVsDinos #AMNH
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Star Forming Where Planet Should Be
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In this episode, astronomers using the Atacama Large Millimeter/Submillimeter Array have discovered a star forming in a brand new solar system in a spot where planets usually form.
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Goodbye, Oppy - This Is Why NASA Opportunity Rover Was Incredible
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Hello and welcome! My name is Anton and in this video, we will talk about the end of the NASA Opportunity mission and the interesting facts that most people may have not known about.
Opportunity landing video is here: https://mars.nasa.gov/resources/20172/mars-exploration-rover-entry-descent-and-landing-on-mars/
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SpaceX Pad 40 Wake Up - ISS 02-15-2019
Today was the second day in a row the TE Strongback has been raised and lowered without a payload. We are sure they want some practice after being idle for over two months. We are a US disabled veteran run, non-profit video production company whose mission is to bring other disabled US Veterans to witness a launch, experience US Space History and become part of our report. Our nonprofit 501(c)(3) is 100% tax deductible, just go to our webpage www.USLaunchReport.com which is merged with www.VeteransSpaceReport.com and find our Donate button. You can help change the life of a US Veteran. Thank You
Watch A High-Tech Harpoon Successfully Capture Space Junk
A high-tech harpoon has demonstrated that it can successfully capture space junk.
See the Apollo 11 Landing Site from Lunar Orbit
A series of images of the Apollo 11 landing site has been captured by NASA's Lunar Reconnaissance Orbiter. The angle of the Sun shifts the lighting of the site in this compilation of images. (Video is looped) -- Apollo 11 Landing Site Seen in Unprecedented Detail: https://www.space.com/14874-apollo-11-landing-site-moon-photo.html
Credit: NASA/LRO
MU69 is Flat, and No One Knows Why | SciShow News
MU69 seems to be much flatter than we thought and the Gaia space telescope can tell us where galaxies have been and, maybe, where they're going.
Host: Caitlin Hofmeister
SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at https://www.scishowtangents.org
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Sources:
http://pluto.jhuapl.edu/News-Center/News-Article.php?page=20190208
https://www.sciencenews.org/article/nasa-new-horizons-ultima-thule-mu69-pancakes
https://twitter.com/Alex_Parker/status/1093953928557809664
http://www.planetary.org/blogs/emily-lakdawalla/2019/looking-back-at-mu69.html
https://www.sciencenews.org/article/new-horizons-ultima-thule-mu69-first-image-snowman
https://arxiv.org/pdf/1805.04079.pdf
http://sci.esa.int/gaia/61116-gaia-clocks-new-speeds-for-milky-way-andromeda-collision/
http://sci.esa.int/gaia/
http://sci.esa.int/gaia/47354-fact-sheet/
------
Images:
https://en.wikipedia.org/wiki/File:UltimaThule-Approach-3D-20190101.jpg
http://pluto.jhuapl.edu/Galleries/Featured-Images/image.php?gallery_id=2&image_id=592
http://pluto.jhuapl.edu/Galleries/Featured-Images/image.php?gallery_id=2&image_id=591
http://pluto.jhuapl.edu/soc/UltimaThule-Encounter/
http://pluto.jhuapl.edu/Galleries/Featured-Images/image.php?gallery_id=2&image_id=590
https://images.nasa.gov/details-PIA17206.html
https://images.nasa.gov/details-PIA08233.html
http://pluto.jhuapl.edu/Galleries/Featured-Images/image.php?page=1&gallery_id=2&image_id=586&keyword=136&search_cat=
https://en.wikipedia.org/wiki/File:Local_Group_and_nearest_galaxies.jpg
https://commons.wikimedia.org/wiki/File:Andromeda_Galaxy_(with_h-alpha).jpg
https://commons.wikimedia.org/wiki/File:M33.jpg
http://www.esa.int/spaceinimages/Images/2004/05/Gaia_mapping_the_stars_of_the_Milky_Way
http://sci.esa.int/gaia/61118-stellar-motions-in-the-andromeda-galaxy/
http://sci.esa.int/gaia/61117-future-motions-of-the-milky-way-andromeda-and-triangulum-galaxies/
https://www.spacetelescope.org/images/opo1220b/
http://sci.esa.int/gaia/60243-data-release-2/
Discussing Lunar Exploration Plans on This Week @NASA – February 15, 2019
Working with industry to develop new lunar landers, testing resumes with our Space Launch System rocket engine, and after a job well done – the end of the line for one of our Mars rovers … a few of the stories to tell you about – This Week at NASA!
This video is available for download from NASA's Image and Video Library: https://images.nasa.gov/details-NHQ_2019_0215_Discussing%20Lunar%20Exploration%20Plans%20on%20This%20Week%
[email protected]%20%E2%80%93%20February%2015,%202019.html
International Space Station
A new buzz comes to the International Space Station (ISS): Astrobee. Three free-flying, cube-shaped robots. The robots are designed to help scientists and engineers develop and test technologies for use in microgravity to assist astronauts with routine chores, and give ground controllers additional eyes and ears on the space station. The autonomous robots, powered by fans and vision-based navigation, perform crew monitoring, sampling, logistics management, and accommodate up to three investigations.
The MARROW study (Bone Marrow Adipose Reaction: Red Or White?) (Marrow) investigation looks at the effect of microgravity on the bone marrow. It is believed that microgravity, like long-duration bed rest on Earth, has a negative effect on the bone marrow and the blood cells that are produced in the bone marrow. The extent of this effect, and its recovery, are of interest to space research and healthcare providers on Earth.
A Tour of Where is the Universe Hiding its Missing Mass?
Astronomers have spent decades looking for something that sounds like it would be hard to miss: about a third of the "normal" matter in the Universe. New results from NASA's Chandra X-ray Observatory may have helped them locate this elusive expanse of missing matter.
From independent, well-established observations, scientists have confidently calculated how much normal matter — meaning hydrogen, helium and other elements — existed soon after the Big Bang. In the time between the first few minutes and the first billion years or so, much of the normal matter made its way into gas and objects such as stars and planets, observed in the present-day Universe.
The problem is that when astronomers add up the mass of all the normal matter in the present-day Universe about a third of it can't be found. (This missing matter is distinct from the still-mysterious dark matter.)
One idea is that the missing mass gathered into gigantic strands or filaments of warm (that is, temperature less than 100,000 Kelvin) gas and hot (as in hotter than 100,000 Kelvin) gas in intergalactic space. These filaments are known by astronomers as the "warm-hot intergalactic medium" or WHIM. They are invisible to optical light telescopes, but some of the warm gas in filaments has been detected in ultraviolet light.
Using a new technique, researchers have found new and strong evidence for the hot component of the WHIM based on data from Chandra and other telescopes. They used Chandra to look for and study filaments of warm gas lying along the path to a quasar, a bright source of X-rays powered by a rapidly growing supermassive black hole. This quasar is located about 3.4 billion light years from Earth.
Their work revealed an absorption line from oxygen expected to be present in a gas with a temperature of about one million Kelvin. By extrapolating from these observations of oxygen to the full set of elements, and from the observed region to the local Universe, the researchers report they can account for the complete amount of missing matter.
If this result is confirmed, one of the biggest puzzles in modern astrophysics could be solved.
Inside KSC! Feb. 15, 2019
This week in space news, NASA announced plans to work with American companies to design and develop new reusable systems for astronauts to land on the Moon's surface. Inside Kennedy Space Center's Launch Abort System Facility, workers assembled the Orion Launch Abort system that will be used for a full stress test called Ascent Abort-2.
What did NASA's Opportunity Rover find on Mars? (Episode 3)
My battery is low and it's getting dark. NASA's Opportunity has come to the end of a 15 year mission on Mars. But what did it discover? This episode focuses on its trip around Victoria crater!
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Why SpaceX and Blue Origin Are Competing With China
Elon Musk's SpaceX and Jeff Bezos' Blue Origin have long dominated the news with their respective advances in private space travel industry. But two private Chinese companies are also making big moves and gaining billions in investments as China's state space agency announces its own ambitious goals. Here's what's going on in the global space race.
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Why SpaceX and Blue Origin Are Competing With China
NASA ScienceCasts: Big Questions About Small Worlds
Visit http://science.nasa.gov/ for more.
Small Worlds hold keys to questions about our solar system and the origin of life on Earth.
Earth from space: Maldive jewels
The Copernicus Sentinel-2 takes us over jewels of the Maldives for Valentine’s week in this edition of the Earth from Space programme.
Download the image: http://www.esa.int/spaceinimages/Images/2019/02/Jewels_of_the_Maldives
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Mars 2020 Rover Build - Inside the Clean Room
All facets of the NASA's Mars 2020 Rover are under construction in the Spacecraft Assembly Facility at the Jet Propulsion Laboratory in California. Take a peek inside. -- Mars Rovers of the Future: What Comes After Opportunity: https://www.space.com/mars-rovers-after-opportunity.html
Credit: NASA/JPL-Caltech
Q&A 79: Galactic Prime Directive Keeping Us In The Dark? And More... Featuring Ryan Macdonald
In this week's questions show, I explain why SLS is still happening, if we can rule out contamination when we finally find life, and wonder why China is sending spacecraft to the Moon.
Featuring Ryan MacDonald, aka @martiancolonist
https://www.youtube.com/channel/UCb-TkZnWpBPg4wNz3ctU0AA
00:35 Why fix Mars?
03:00 How do I do it all?
04:35 Are astronomers lazy?
07:37 Why is SLS still happening?
10:57 Breaking the Prime Directive
12:54 Can we rule out contamination?
15:18 What mission do I want to focus on?
17:40 Why is China on the Moon?
19:54 Can light push the Sun?
21:46 Why no HD video from space?
24:45 What if a planet had its atmosphere stripped away?
Our Book is out!
https://www.amazon.com/Universe-Today-Ultimate-Viewing-Cosmos/dp/1624145442/
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[email protected]Ultima Thule is...Flat? This New Research May Explain Why
You can buy Universe Sandbox 2 game here: http://amzn.to/2yJqwU6
Hello and welcome! My name is Anton and in this video, we will talk about the new discovery of the shape of Ultima Thule and how some of the studies might resolve this mystery.
The analysis of how comets evolve can be found here: https://arxiv.org/pdf/1611.02604.pdf
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William
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Unexpectedbooks.com
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Jordan
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Jer
Dave Blair
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Olegas Budnik
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Bartholomew Macaluso
Gordon Cooper
George Williams
Jayjay Volz
Shinne
AA
Justin Fortune
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Jakub Glos
Toğrul Hüseynli
Moonic
Robert MacDonald
Becky
Giovanni Perryman
Steven
Zachary Fluke
Anataine Deva
Bob Davies
Steve Aiello
Michael Rucker
Tom Warren
Xyndicate
Bodo Graßmann
Liam Moss
Michael Koebel
Gary Steelman
Jake Salo
Shelley Passage
Honey Suzanne Lyons
Arikkat A Unnikrishnan
Angelina Werner
Steve Wotton
Rock Howard
Daniel Coleman
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Niji
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SETI Talks The Future of NASA Space Telescopes – What to Look for in the Next Generation
What should we expect from the next generation of space telescopes? What key scientific questions will they help answer? Do we have the technology we need to operate them in 20-30 years?
To address these issues, NASA selected four large space mission concepts to study and consider as possible future Large Strategic Science Missions. Of the NASA astrophysics division missions, these tend to be the most expensive, but also have the greatest capacity.
Three of those space telescopes got the attention of the SETI Institute because of their potential to answer the question, “Are We Alone?”
The Origins Space Telescope (Origins) is a large cooled infrared space telescope with higher sensitivity and better angular resolution than any prior observatory accessing similar wavelengths. Among its many science objectives covering the first stars to life, Origins could help scientists understand the abundance and availability of water for habitable planets and could look forbiosignatures on potentially habitable worlds transiting low-mass stars.
The Large UV Optical Infrared Surveyor (or LUVOIR) is a general-purpose observatory; its key science goal is to characterize a wide range of exoplanets, including those that might be habitable and orbiting a range of stellar types.
The Habitable Exoplanet Imaging Mission (HabEx) is a space telescope, optimized to search for and image Earth-sized exoplanets in the habitable zones around sun-like stars, where liquid water might exist. HabEx would also have a suite of general astrophysics science capabilities.
Each of these concepts has pros and cons, as well as other technological, cost, and risk challenges. These mission concepts will be described in detail in their final study reports, which will be delivered to the National Academy of Sciences for the Astro 2020 Decadal Survey later this year. It is still unknown whether the Decadal Survey will prioritize none, one, or even all of these concepts, but the several hundred scientists and engineers involved in these mission concept studies for the past three years are confident that we are now capable of building these telescopes, and that the science that they can deliver will be compelling and change again our view of the cosmos, just as the Hubble Space Telescope has done for the past 3 decades.
We invited three scientists directly involved in each one of the three teams above to discuss these exciting future mission projects. During this SETI Talk, they will describe their projects, and tell us more about the challenges and the processes that could make these missions a reality:
Prof. Courtney Dressing, astronomer and member of the LUVOIR Science and Technology Definition Team (STDT), whose research aims to detect and characterize planetary systems orbiting nearby stars.
Dr. Kimberly Ennico Smith, a NASA research astrophysicist who is multidisciplinary in her approach to space instruments, telescopes, and mission concepts. She is a member of the STDT of OST.
Prof. Scott Gaudi, astronomer and community chair of the HabEx STDT, who bridges the gap between theory and observations, with extensive experience in leadership roles and consensus-building, as well as experience with several exoplanet detection methods and exoplanet surveys.
Moon Camp Challenge – The past, present and future of Moon exploration
James Carpenter, from ESA’s Human and Robotics Exploration Directorate, working in areas focussing on space exploration, will give an overview of the lunar exploration efforts that have been done so far and discuss why space agencies believe returning to the Moon is the next stepping stone in space exploration.
For more information about the Moon Camp Challenge visit: www.esa.int/mooncamp .
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ESA is Europe's gateway to space. Our mission is to shape the development of Europe's space capability and ensure that investment in space continues to deliver benefits to the citizens of Europe and the world. Check out http://www.esa.int/ESA to get up to speed on everything space related.
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#Webinar
We Now Know How the Universe Will Probably End - The Big Rip
You can buy Universe Sandbox 2 game here: http://amzn.to/2yJqwU6
Hello and welcome! My name is Anton and in this video, we will talk about the discovery of the future of our universe and the analysis of the increase of dark energy across time.
The study can be found here: https://arxiv.org/ftp/arxiv/papers/1811/1811.02590.pdf
Support this channel on Patreon to help me make this a full time job:
https://www.patreon.com/whatdamath
Space Engine is available for free here: http://spaceengine.org
Enjoy and please subscribe.
Twitter: https://twitter.com/WhatDaMath
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Bitcoins to spare? Donate them here to help this channel grow!
1GFiTKxWyEjAjZv4vsNtWTUmL53HgXBuvu
The hardware used to record these videos:
CPU: https://amzn.to/2LZFQCJ
Video Card: https://amzn.to/2M1W26C
Motherboard: https://amzn.to/2JYGiQQ
RAM: https://amzn.to/2Mwy2t4
PSU: https://amzn.to/2LZcrIH
Case: https://amzn.to/2MwJZz4
Microphone: https://amzn.to/2t5jTv0
Mixer: https://amzn.to/2JOL0oF
Recording and Editing: https://amzn.to/2LX6uvU
Thank you to all Patreon
supporters of this channel
Specifically, great thanks to the
following members:
Mayumi
Mark Teranishi
Lilith Dawn
Marin Templeton
Sam Reed
William
Nick Dolgy
Luminger
Greg Lambros
Unexpectedbooks.com
Lauren Smith
Michael Tiganila
Jordan
Michael Mitsuda
Lyndon Riley
Jer
Dave Blair
Leo Wehrli
Konrad Kummli
Alexander Leimbeck
Sander Stols
Kai Raphahn
Sergio Ruelas
Olegas Budnik
Tracy Burgess
Bartholomew Macaluso
Gordon Cooper
George Williams
Jayjay Volz
Shinne
AA
Justin Fortune
Chase Staggs
Jakub Glos
Toğrul Hüseynli
Moonic
Robert MacDonald
Becky
Giovanni Perryman
Steven
Zachary Fluke
Anataine Deva
Bob Davies
Steve Aiello
Michael Rucker
Tom Warren
Xyndicate
Bodo Graßmann
Liam Moss
Michael Koebel
Gary Steelman
Jake Salo
Shelley Passage
Honey Suzanne Lyons
Arikkat A Unnikrishnan
Angelina Werner
Steve Wotton
Rock Howard
Daniel Coleman
Aneliya Pancheva
Niji
Ralph Spataro
Peter Hamrak
Andrey Vesnin
Willem ter Harmsel
Robert Wyssbrod
James Myers
MrR
Vincent L Cleaver
Jacob Spencer
Stan Komander
Claye Griffith
Jakub Rychecky
JohnTaylorWalker
Jon Haynes
Shaun Cahill
George Naumov
Kyle eagle
David Lewis
Matthew Lazear
Michael J Fluharty
Howard Zhang
Former Patrons:
Tim Sageser
Jokage
Jurrien Diepenbroek
Lunos
Hundolin
Galaxia
Zio
Nelson Reyes
Brett Comeau
Jamie Walcott
Hazen Miller
Bobby Kent
Snowie15
Madalevek
Khai Hung
Joseph McEvoy
Isambard
Jason Neuschmid
Nicolas Belanger
Peter Rose
Nor Dine
Galant Human
Jeffrey Paik
Check the Patreon page to join.
NASA bids farewell to Mars rover Opportunity
NASA has declared the mission of the Mars rover Opportunity officially complete, 15 years after its launch. The solar-powered vehicle hasn't been hear from since June, when a dust storm swept across the red planet. CBS News' Tom Hanson reports.
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