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Mark Thomas (CEO - Reaction Engines) and Adam Dissel (President - Reaction Engines Inc.) talk about the achievement of reaching Mach 5 Tue, 2019-10-22 07:14 Reaction Engines has successfully tested its innovative precoolerat airflow temperature conditions representing Mach 5, or five times the speed of sound, marking a significant milestone in the development of its SABRE™ engine and paving the way for a revolution in hypersonic flight and space access. The precooler heat exchanger is a vital component of Reaction Engines’ revolutionary SABRE air-breathing rocket engine and is an enabling technology for other precooled propulsion systems and a range of commercial applications. This ground-based test achieved the highest temperature objective of the Company’s HTX testing programme and took place at its specially constructed unique facility at the Colorado Air and Space Port, United States. During the latest series of tests, Reaction Engines’ unique precooler successfully quenched airflow temperatures in excess of 1,000°C (~1,800°F) in less than 1/20th of a second. The tests demonstrated the precooler’s ability to successfully cool airflow at speeds significantly in excess of the operational limit of any jet-engine powered aircraft in history. Mach 5 is more than twice as fast as the cruising speed of Concorde and over 50% faster than the SR-71 Blackbird aircraft – the world’s fastest jet-engine powered aircraft. This most recent test builds upon the success of previous HTX hot tests undertaken in April which saw the precooler successfully operate at temperatures of 420ᵒC (~788ᵒF) – matching the thermal conditions corresponding to Mach 3.3 flight. Commenting, Mark Thomas, Chief Executive, Reaction Engines, said: “This is a major moment in the development of a breakthrough aerospace technology which has seen Reaction Engines’ precooler tested at Mach 5 airflow temperature conditions, smashing through previous achievements at Mach 3.3 temperatures and paving the way for hypersonic flight. In addition to its use in our SABRE class of air breathing rocket engines, there are numerous exciting commercial applications for our precooler technology, which delivers world-leading heat transfer capabilities at low weight and compact size, and we are seeing significant interest from a range of potential customers and technology partners.” Reaction Engines’ patented precooler heat exchanger has the potential to be used in a wide range of commercial thermal management applications. These include the development of precooled systems that would significantly enhance the performance of existing jet engine technology, along with applications in automotive, aerospace, energy and industrial processes. The major testing milestone is the culmination of 30 years of engineering innovation since Reaction Engines was founded in 1989 by three propulsion engineers from Rolls-Royce, Alan Bond, Richard Varvill and John Scott-Scott. Richard Varvill, Reaction Engines’ co-founder and current Chief Technology Officer, said: “This is a momentous landmark for Reaction Engines in the development of its SABRE engine, which has the potential to revolutionise both access to space and high-speed flight by powering aircraft to five times the speed of sound. The performance of our proprietary precooler technology was validated at hypersonic flight conditions and takes us closer to realising our objective of developing the first air-breathing engine capable of accelerating from zero to Mach 5.” The HTX hot heat exchanger testing programme is a significant milestone on the roadmap to enabling transformational SABRE powered space access systems and has been keenly supported by the UK Space Agency (UKSA) and European Space Agency (ESA). In March, the two agencies reviewed and validated the preliminary design of the demonstrator engine core of SABRE, which Reaction Engines will use to undertake ground-based testing at its under-construction TF1 test facility at Westcott, Buckinghamshire, UK. The HTX hot heat exchanger test programme was supported under a contract to the Company’s US subsidiary Reaction Engines Inc. by the Defense Advanced Research Projects Agency (DARPA). The precooler test item was designed and constructed at Reaction Engines’ headquarters in the UK, before being shipped to the Company’s Colorado site for testing. Following this significant testing milestone, the Company will embark on achieving the next steps of the SABRE programme while also pursuing nearer-term opportunities that will benefit from the addition of the Company’s heat exchanger technology. Over the last four years Reaction Engines has raised over £100m from public and private sources and has secured investment from BAE Systems, Rolls-Royce and Boeing HorizonX. https://www.reactionengines.co.uk/news/reaction-engines-test-programme-fully-validates-precooler-hypersonic-heat-conditions

Spacesuits are personalized spaceships that mimic all of the protections from the harsh environment of space and the basic resources that Earth and its atmosphere provide. Spacesuit Engineers Amy Ross, Kristine Davis and Dustin Gohmert showcase the advanced features of the next generation spacesuits that will be worn by astronauts as they explore the Moon as part of the Artemis program. Submit question below using #AskNASA and subscribe to learn more from our experts.

Original Air Date: Oct. 17, 2019 All the material we can see is just a small fraction of the universe. The rest, a full 95 percent, is invisible and mysterious. These are the enigmatic dark matter and dark energy. While dark matter keeps things like galaxies together, dark energy acts in an opposite way – it pushes groups of galaxies apart and expands the universe itself. This event will discuss how astronomers are working to map the universe’s dark matter so they can see the effects of dark energy. The results could help us understand if the universe will expand at an accelerating rate forever. Host: Preston Dyches Speaker(s): Alina Kiessling — Astrophysicist, NASA-JPL Jason Rhodes — Astrophysicist, NASA-JPL

The first NASA mission to the Jupiter's Trojan asteroids is scheduled to launch in in October 2021. -- Learn More About the Lucy Mission: https://www.space.com/42309-lucy-trojan-asteroids-mission-approved.html Credit: NASA's Goddard Space Flight Center/Dan Gallagher

Get 20% off a premium subscription to Brilliant when you go to http://www.brilliant.org/answerswithjoe The SpaceX Starship is in its 4th iteration and is officially entering the testing phase with the production of the Mark 1 prototype that was unveiled on Sept. 28th 2019. Today we look at the history of the Starship and look at the design changes that have occurred along the way. Support me on Patreon! http://www.patreon.com/answerswithjoe Get cool nerdy t-shirts at http://www.answerswithjoe.com/shirts Interested in getting a Tesla? Use my referral link and get discounts and perks: https://ts.la/joe74700 Become a channel member and get access to exclusive livestreams and content here: https://www.youtube.com/channel/UC-2YHgc363EdcusLIBbgxzg/join Follow me at all my places! Instagram: https://instagram.com/answerswithjoe Snapchat: https://www.snapchat.com/add/answerswithjoe Facebook: http://www.facebook.com/answerswithjoe Twitter: https://www.twitter.com/answerswithjoe LINKS LINKS LINKS: 2016 - SpaceX CEO Musk unveiled details of the space mission architecture, launch vehicle, spacecraft, and Raptor engines that power the vehicles at the 67th International Astronautical Congress on September 27, 2016. Full Presentation: https://www.youtube.com/watch?v=H7Uyfqi_TE8 SpaceX 2016 animation https://www.youtube.com/watch?v=0qo78R_yYFA 2017 presentation https://www.youtube.com/watch?v=tdUX3ypDVwI Earth-to-Earth video: https://www.youtube.com/watch?v=zqE-ultsWt0 2018 presentation and Dear Moon announcement https://www.youtube.com/watch?v=zu7WJD8vpAQ 2019 presentation https://www.youtube.com/watch?v=sOpMrVnjYeY

Visit our sponsor, Brilliant: https://brilliant.org/IsaacArthur/ Venus is a desolate scorching world on which no life can exist. Yet if it can be cooled down, there is no other planet we know of more suitable for terraforming and colonization. We will examine methods of cooling Venus down and preparing it to be settled in the future. Visit our Website: http://www.isaacarthur.net Support us on Patreon: https://www.patreon.com/IsaacArthur SFIA Merchandise available: https://www.signil.com/sfia/ Social Media: Facebook Group: https://www.facebook.com/groups/1583992725237264/ Reddit: https://www.reddit.com/r/IsaacArthur/ Twitter: https://twitter.com/Isaac_A_Arthur on Twitter and RT our future content. SFIA Discord Server: https://discord.gg/53GAShE Listen or Download the audio of this episode from Soundcloud: Episode's Audio-only version: https://soundcloud.com/isaac-arthur-148927746/winter-on-venus Episode's Narration-only version: https://soundcloud.com/isaac-arthur-148927746/winter-on-venus-narration-only Credits: Winter on Venus Episode 207, Season 5 E41 Written by: Isaac Arthur Editors: Darius Said Jerry Guern S. Kopperud Cover Art Jakub Grygier https://www.artstation.com/jakub_grygier Graphics by Jarred Eagley Jeremy Jozwik https://www.artstation.com/zeuxis_of_losdiajana Kris Holland (Mafic Studios) www.maficstudios.com Kristijan Tavcar https://www.miragedereve.com Sam McNamara of Rapid Thrash Sergio Botero https://www.artstation.com/sboterod?fref=gc Tristan3D Produced & Narrated by Isaac Arthur Music Manager Luca DeRosa - [email protected] Music: Markus Junnikkala, "Hail the Victorious Dead" https://www.markusjunnikkala.com/ Aerium, "The Islands moved while I was asleep" https://www.youtube.com/channel/UCRnUJY3l5vIJFGsY3XvW4dQ Dan MacLeod, "Lucky" https://soundcloud.com/neptuneuk Markus Junnikkala, "The Men Would love a good fight" https://www.markusjunnikkala.com/ Lombus, "Doppler Shores" https://lombus.bandcamp.com Paradox Interactive, "In Search of Life" https://www.paradoxplaza.com Ross Bugden, "Revelation" https://www.youtube.com/channel/UCQKGLOK2FqmVgVwYferltKQ

Original Air Date: Oct. 17, 2019 All the material we can see is just a small fraction of the universe. The rest, a full 95 percent, is invisible and mysterious. These are the enigmatic dark matter and dark energy. While dark matter keeps things like galaxies together, dark energy acts in an opposite way – it pushes groups of galaxies apart and expands the universe itself. This event will discuss how astronomers are working to map the universe’s dark matter so they can see the effects of dark energy. The results could help us understand if the universe will expand at an accelerating rate forever. Host: Preston Dyches Speaker(s): Alina Kiessling — Astrophysicist, NASA-JPL Jason Rhodes — Astrophysicist, NASA-JPL

www.eyesonthesky.com Mercury can be hard to find and see even under ideal circumstances. This month, the ecliptic is low to the horizon, but there are a few things you can do to more easily locate the fast-moving innermost planet! Check out all of the tips Dave shares in this video to learn how to spot Mercury, Venus and a VERY young Moon late in October 2019. See what's up in the night sky every week with "Eyes on the Sky" videos, astronomy made easy.

Mark Thomas (CEO - Reaction Engines) and Adam Dissel (President - Reaction Engines Inc.) talk about the achievement of reaching Mach 5 Tue, 2019-10-22 07:14 Reaction Engines has successfully tested its innovative precoolerat airflow temperature conditions representing Mach 5, or five times the speed of sound, marking a significant milestone in the development of its SABRE™ engine and paving the way for a revolution in hypersonic flight and space access. The precooler heat exchanger is a vital component of Reaction Engines’ revolutionary SABRE air-breathing rocket engine and is an enabling technology for other precooled propulsion systems and a range of commercial applications. This ground-based test achieved the highest temperature objective of the Company’s HTX testing programme and took place at its specially constructed unique facility at the Colorado Air and Space Port, United States. During the latest series of tests, Reaction Engines’ unique precooler successfully quenched airflow temperatures in excess of 1,000°C (~1,800°F) in less than 1/20th of a second. The tests demonstrated the precooler’s ability to successfully cool airflow at speeds significantly in excess of the operational limit of any jet-engine powered aircraft in history. Mach 5 is more than twice as fast as the cruising speed of Concorde and over 50% faster than the SR-71 Blackbird aircraft – the world’s fastest jet-engine powered aircraft. This most recent test builds upon the success of previous HTX hot tests undertaken in April which saw the precooler successfully operate at temperatures of 420ᵒC (~788ᵒF) – matching the thermal conditions corresponding to Mach 3.3 flight. Commenting, Mark Thomas, Chief Executive, Reaction Engines, said: “This is a major moment in the development of a breakthrough aerospace technology which has seen Reaction Engines’ precooler tested at Mach 5 airflow temperature conditions, smashing through previous achievements at Mach 3.3 temperatures and paving the way for hypersonic flight. In addition to its use in our SABRE class of air breathing rocket engines, there are numerous exciting commercial applications for our precooler technology, which delivers world-leading heat transfer capabilities at low weight and compact size, and we are seeing significant interest from a range of potential customers and technology partners.” Reaction Engines’ patented precooler heat exchanger has the potential to be used in a wide range of commercial thermal management applications. These include the development of precooled systems that would significantly enhance the performance of existing jet engine technology, along with applications in automotive, aerospace, energy and industrial processes. The major testing milestone is the culmination of 30 years of engineering innovation since Reaction Engines was founded in 1989 by three propulsion engineers from Rolls-Royce, Alan Bond, Richard Varvill and John Scott-Scott. Richard Varvill, Reaction Engines’ co-founder and current Chief Technology Officer, said: “This is a momentous landmark for Reaction Engines in the development of its SABRE engine, which has the potential to revolutionise both access to space and high-speed flight by powering aircraft to five times the speed of sound. The performance of our proprietary precooler technology was validated at hypersonic flight conditions and takes us closer to realising our objective of developing the first air-breathing engine capable of accelerating from zero to Mach 5.” The HTX hot heat exchanger testing programme is a significant milestone on the roadmap to enabling transformational SABRE powered space access systems and has been keenly supported by the UK Space Agency (UKSA) and European Space Agency (ESA). In March, the two agencies reviewed and validated the preliminary design of the demonstrator engine core of SABRE, which Reaction Engines will use to undertake ground-based testing at its under-construction TF1 test facility at Westcott, Buckinghamshire, UK. The HTX hot heat exchanger test programme was supported under a contract to the Company’s US subsidiary Reaction Engines Inc. by the Defense Advanced Research Projects Agency (DARPA). The precooler test item was designed and constructed at Reaction Engines’ headquarters in the UK, before being shipped to the Company’s Colorado site for testing. Following this significant testing milestone, the Company will embark on achieving the next steps of the SABRE programme while also pursuing nearer-term opportunities that will benefit from the addition of the Company’s heat exchanger technology. Over the last four years Reaction Engines has raised over £100m from public and private sources and has secured investment from BAE Systems, Rolls-Royce and Boeing HorizonX. https://www.reactionengines.co.uk/news/reaction-engines-test-programme-fully-validates-precooler-hypersonic-heat-conditions

Dr Tom Barklay speaks on Discovering planets around the nearest and brightest stars with the Transiting Exoplanet Survey Satellite. Recorded at StarGaze 2019 hosted by the Northern Virginia Astronomy Club

An exploration of recent research that suggests that Venus' atmosphere may be being altered by the presence of microbial life. https://www.patreon.com/johnmichaelgodier Papers: "Long-term variations of Venus' 365-nm albedo observed by Venus Express, Akatsuki, MESSENGER, and Hubble Space Telescope", Yeon Joo Lee et al, 2019 https://arxiv.org/abs/1907.09683 Music: Cylinder Eight by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) Source: http://chriszabriskie.com/cylinders/ Artist: http://chriszabriskie.com/

The SETI Institute's Nathalie Cabrol walks you through what it's like to prepare for a month-long field expedition to the mountains of Chile.

This Solar Storm Forecast is sponsored in part by 3ric Johanson: http://instagram.com/scubist Although space weather continues to be quiet this week, the Sun has us in a clutch of suspense as we watch two coronal holes rotate ever closer to the Earth-strike zone. The first of these will send us a short burst of fast solar wind near week's end, while the other, larger coronal hole will send us a much larger burst of fast wind in about 10-12 days. This larger coronal hole has already brought us to storm levels the last two times it rotated Earthside and the hopes are it will give us yet another repeat performance. Aurora photographers should get ready for several shows, with the larger one bringing views of aurora to mid-latitudes near the end of the month. Outside of this, the Sun remains spotless, which means amateur radio operators and emergency responders are still suffering poor radio propagation on earth's dayside. However, GPS users should enjoy decent reception this week, even at low latitudes. Learn more details about the coming solar storms, catch up on aurora photographs from the last time these coronal holes were in view, and see what else our Sun has in store. Want early access to these forecasts? Join my Patreon community: http://patreon.com/SpaceWeatherWoman For daily and often hourly updates (during active times) visit me on Twitter: https://twitter.com/TamithaSkov For a more in-depth look at the data and images highlighted in this video see the links in my other videos. I need to save this space for the aurora field reporter credits highlighted this week. Aurora Field Reporting: Adrien Mauduit, Senja Norway: https://twitter.com/NightLights_AM/status/1182964072607862784 Bernardus Johannes, Laukvik Norway: https://twitter.com/NLPLNO/status/1181288405713293312 Mia Stålnacke, Kiruna, Sweden: https://twitter.com/AngryTheInch/status/1181274978886569984 Giuseppe Petricca, Hebrides, Scotland: https://twitter.com/gmrpetricca/status/1177678297804746755 Chris Cogan, Sutherland, Scotland: https://twitter.com/cogie_s/status/1177743700602085376 https://twitter.com/cogie_s/status/1177715654729842690 James Rowley-Hill, Morston Quay, Norfolk, UK: https://twitter.com/chunder10/status/1177964140117336064 Live Aurora Network, Kirkjufell mountain, Iceland: https://twitter.com/LiveAuroraNetw1/status/1182269784332931073 Jeremy Kuzub, Arkanes lighthouse, (and Icelandair over Labrador), Iceland: https://twitter.com/jufa/status/1178664904594722817 https://twitter.com/jufa/status/1177873859787284480 Sophie Melanson, Kouchibouguac National Park, New Brunswick, Canada: https://twitter.com/CodiacSm/status/1178788604220526599 Kim Hines, Teulon, Manitoba, Canada: https://twitter.com/KimHinesSN/status/1177877950416343042 Donna, Plumas, Manitoba, Canada: https://twitter.com/LachDonna/status/1177844147807543303 Rebecca Douglass, Canmore, Alberta, Canada: https://twitter.com/BxDouglas/status/1182222273417101312 Team Tanner, Ponoka, Alberta, Canada: https://twitter.com/dartanner/status/1179186924923179010 Dave McColm, Whistler Mountain, British Columbia, Canada: https://twitter.com/triwhistler/status/1180649520817815552 Notanee Bourassa, La Ronge, Saskatchewan, Canada: https://twitter.com/DJHardwired/status/1178888565301895168 NEOC Starcam, Maine, USA: https://twitter.com/AngelBrise67/status/1177788091798564864 Lillie Farrell, Northern Vermont, USA: https://twitter.com/LillieFarrellWx/status/1177818745156317184 Isaac Diener, Eagle Harbor, Michigan, USA: https://twitter.com/ID_Photo_Graphy/status/1178027690718384131 Eric Moen, Lake Vermilion, Minnesota, USA: https://twitter.com/mark_tarello/status/1177805062736879616 Vincent Ledvina, Minnesota, USA: https://twitter.com/Vincent_Ledvina/status/1178130216557920257 James Garlick, Hobart, Tasmania: http://instagram.com/james.garlick https://twitter.com/today_tasmania/status/1182215830131466240

NASA’s & JAXA’s asteroid missions hit important milestones in August. OSIRIS-REx found some good landing sites on Bennu, and Hayabusa2 grabbed a sample of Ryugu to bring back to Earth for study. ASC’s Patrick So and Laura Danly bring you the latest! All Space Considered is Griffith Observatory’s live science program that is free and open to the public, held the first Friday of every month. Subscribe now for more All Space Considered clips: https://www.youtube.com/subscription_center?add_user=griffithobservatory Watch All Space Considered videos: https://www.youtube.com/griffithobservatory Learn more about All Space Considered on our official site: http://griffithobservatory.org/asc/all_space.html Follow All Space Considered on SOCIAL MEDIA: Twitter: https://twitter.com/allspacecnsdrd Facebook: https://www.facebook.com/AllSpaceConsidered/ Instagram: https://www.instagram.com/allspaceconsidered/ -Disclaimer- WE DO NOT OWN THE RIGHTS TO THE, VIDEOS, MUSICAL MATERIAL OR PICTURES PRESENT THAT WERE NOT CREATED DIRECTLY BY GRIFFITH OBSERVATORY OR ITS AFFILIATES, ALL CREDIT FOR THIS MATERIAL GOES TO THE ORIGINAL ARTISTS, CREATORS AND COMPOSERS. Fair Use: "Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use."

Find out more about the recreation of the missing 1965 episode Mission to the Unknown by the University of Central Lancashire in this short behind the scenes documentary created by Josh Snares. Watch the full recreation here: https://youtu.be/NW8yk-m5Ig8 Josh Snares: https://www.youtube.com/user/JOSHGuyWithAFace WATCH MORE: First Doctor: http://bit.ly/TheFirstDoctor The Collection Trailers: http://bit.ly/DW-TheCollectionTrailers Daleks: http://bit.ly/DW-Daleks Subscribe to Doctor Who for more exclusive videos: http://bit.ly/SubscribeToDoctorWho MORE ABOUT DOCTOR WHO: Welcome to the Doctor Who Channel! Travel in the TARDIS with clips dating back to the Doctor's first incarnation in 1963, all the way through dozens of regenerations. Including behind-the-scenes footage, exclusive videos and our very own show Doctor Who: The Fan Show - this is the place to find all the best official clips. #DoctorWho Want to share your views with the team behind Doctor Who and win prizes? Join our audience panel here: https://www.bbcstudiosvoice.com/register This is a channel from BBC Studios, who help fund new BBC programmes. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx

The saga will end, the story lives forever. Watch the final trailer for #StarWars: #TheRiseOfSkywalker in theaters December 20. Get your tickets now: Fandango.com/TheRiseOfSkywalker

Take your first steps in EVE Online with confidence after watching this tutorial, including information on character creation, your on-board AI "Aura", progression and the paths you can take when you start out. Career Agents and The Agency will help you discover the many ways in which you can embark on your own personal space adventure! Start playing EVE for free at http://bit.ly/eve_yt To learn more about current, past, and future updates, head to http://bit.ly/eve_updates__yt