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A Podcast on the Science and Technology of Space Exploration

Low Earth Orbit
Joined March 2018
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Episode 82 is out today. Click through to listen to our full thoughts on NASA's HLS award to SpaceX and Starship blog.spexcast.com/spacex-nas…
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Found it! Ok, since you asked so nicely... here is a full duration @BlueOrigin #BE4 firing. #VulcanRocket #CountDownToVulcan. Enjoy...
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Starship B7 static fire
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Tracking cam footage from today’s Falcon 9 launch of Starlink
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Timelapse of Europa & Io passing over Jupiter's Great Red Spot, shot from space probe Cassini.
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View of Falcon 9's stage separation from ground cameras
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Creating art in space drives innovation in paint technology and technique. The end result is beautiful and inspiring! youtu.be/IpY0qlD-9nA
Four new astronauts from four different decades of life and backgrounds similar to the everyday person are set to become astronauts zpr.io/Ug2ZGMQbyMXM
#Inspiration4 already providing inspiration for all of us
Our eldest unit (13) painted this fabulous render of the @inspiration4x crew orbiting the #earth. Good luck and safe travels @ArceneauxHayley @rookisaacman @ChrisSembroski @DrSianProctor! (she took inspiration from one of @InfographicTony creations 😊)
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While the GAO decision was expected (and final) this decision document does provide some neat technical insights Thread 1/X
The GAO releases its 76-page review and denial of the protests from Blue Origin and Dynetics over NASA's decision to select SpaceX as the sole Human Landing System contractor: gao.gov/assets/b-419783.pdf
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6/X Blue Origin's Terrain Relative Navigation system also didn't work in dark or low light conditions. This led to the restricted landing sites and times as noted in the source selection document. BO argued the Option A requirements didn't explicitly require night landings.
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7/X The radio link budget issue ended up being related to multi-path interference. Radio signals bounce of the surface and can lead to phantom signals. SpaceX budgeted 16db of signal to compensate. BO budgeted zero but said they would re-evaluate during the contract
There needs to be a formal review any time a $100 billion investment tumbles out of control
Jim Oberg has written the detailed piece on Nauka’s near disastrous docking, and NASA’s inexplicable all’s well that ends well attitude, that I’ve been waiting to read. spectrum.ieee.org/space-stat…
The worlds tallest and most powerful rocket!🚀
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A rough road for the BE-4, but things are looking up. If the qualifier engines are successful this Fall then potentially up to 10 new BE-4 could ship in 2022!
The world's largest rocket has made it to the launch pad!
Moving rocket to orbital launch pad
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