Scott Manley
Asteroid Smashing Looks Like Nothing You Ever Imagined
updated
I visited their facility in San Jose, California, where they designed and build their engines, batteries and avionics. I got a tour from Archer's CTO, Tom Muniz who gave me a great deep dive on the high performance engines and batteries.
And of course, I just *had* to fly the simulator.
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The Starship stage flew to the Indian ocean and guided itself to a precision touchdown next to a buoy with a camera, delivering video of the landing and showing the accuracy of the guidance. Even more impressive when it became clear how much damage the control surfaces sustained during entry.
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Syncing up a handful of camera angles from SpaceX to show you the whole thing.
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Starship/SuperHeavy IFT 5
Crew 8 Undocking & Return
Blue Origin NSF-27 (new booster & capsule)
Europa Clipper Launch - Sacrificing all three boosters of a Falcon Heavy
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This is by no means a new idea, in fact I made a video about gun based launchers over a decade ago youtu.be/Moo5nuLWtHs
However a more scientific discussion is found in this paper:
"A comparison of distributed injection hypervelocity accelerators" A. J. Higgins
researchgate.net/publication/268456817_A_comparison_of_distributed_injection_hypervelocity_accelerators
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The best footage of the nozzle failure showing the bottom of the nozzle spinning away comes from dwisephoto.com
NSF discusses the footage in their stream
youtube.com/live/ZPztD5zwgYY?si=--CYPfV1fGYd0rJT&t=12347
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Right now the aircraft they have flying is a much smaller test aircraft - the XB-1 - a 3 engine supersonic jet intended to demonstrate some important new technologies and help the company acquire the skills needed to build the larger Overture passenger airliner.
boomsupersonic.com
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Everything I see points to the carbon fiber hull not being fabricated to the standards needed to ensure safe margins needed for sustained operation. Some decisions during fabrication may have made the material weaker than it could otherwise be, and there's now evidence in the history of the vehicle pointing to degradation over time.
All the data and documents are here, and we're still waiting for a full report from the NTSB who will no doubt go into way more detail in an attempt to understand what happened in a split second 2 miles under the ocean.
https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/
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We had a record number of humans in orbit, a new record for total spaceflight time, a new space station commander. Lots of launches by rockets in US, China, Russia and New Zealand. Some vertical landing rocket tests in china and a bunch of space startups.
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I believe this wreckage confirms that the failure began at the interface between the carbon fiber pressure hull and the forward titanium interface ring. A great deal of composite debris has been pushed backwards into the rear hemisphere, while almost none is visible near the forward sphere.
Many more documents are available here and more witnesses will testify over coming days, providing new insights into this event
https://www.news.uscg.mil/News-by-Region/Headquarters/Titan-Submersible/
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The flight set new records, established new frontiers and was basically paid for by a private astronaut who wanted to have the suit developed and tested it himself so he could look down on Earth in a way few people can.
polarisprogram.com/dawn
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His ride home was a new upgraded Soyuz, one that had been intended to fly Lance Bass, a member of the 'boy band' *NSYNC - but that deal fell apart due to funding issues.
The spacecraft had an error on the way home and Don was almost crushed by cargo he'd smuggled on board.
Now he's back for a 4th time, at the ripe old age of 69.
Nice!
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lumenorbit.com
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And thinking about this has left me stuck and unable to move forward with other work, so I'm sorry I haven't been able to put out any other videos while I'm dealing with this.
This is the crash in question.
asn.flightsafety.org/wikibase/419275
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Apparently while Jet lagged I deleted this video showing the clouds from the Park Fire in California, there's no changes or anything it's just a reupload of the original video.
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Covering the most important space news for the first half of August 2024, starting with a lot of rocket launches and ending with a bit of a disaster for Rocket Factory Augsburg who lost their test booster in a fiery anomaly at SaxaVord Spaceport
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The engine was far from perfect and US engineers tore them apart and designed improvements, ultimately the majority of US launch vehicles had engines with some heritage from the V-2.
A lot of relevant information comes from the Engine History Website
enginehistory.org/Rockets/RPE01/RPE01.shtml
Also thanks to the amazing Hero Relics website for many great scans of historic imagery
http://heroicrelics.org/info/redstone/redstone-engines.html
List of all US Rocket engines including the early Model 39 copies
https://www.b14643.de/Spacerockets/Specials/U.S._Rocket_engines/engines.htm
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Moreover, NASA is contractually required to pay Astrobotic to fly a NASA payload to the moon, so they have to pay for this anyway.
Instead of a rover NASA will send ballast to the moon.
And the worst part is this is triggered by a cost increase to NASA due to the lander being delayed.
nasa.gov/news-release/nasa-ends-viper-project-continues-moon-exploration
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Falcon 9 is the biggest surprise, and has the potential to make a big impact on launch schedules since so many payloads depend on it. But it may be allowed to return to flight given its long string of successful launches.
Elsewhere, 15 year old Radar data is used to show that a big hole in the moon may lead to lava tubes. Kazakhstan signs up for China's lunar base and all the small rocket companies show off new rocket engines being tested.
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This is the first SpaceX launch failure in over 300 launches, a record that nobody else in the launch business can claim.
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So even though the second stage had some problems Europe is no doubt happy to have made this launch happen.
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There are 3 main classes - ResistoJets with a heating element, ArcJets which generate an electric arc and use it to heat the propellent, and Inductive Heating using electromagnetic waves to heat a plasma without electrodes.
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Due to an engineering failure the rocket broke free of the test stand, flew under power for about 30 seconds before crashing back to Earth in a spectacular fireball.
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China Returns From Far Side of Moon
Firefly reveal new launch sites.
SpaceX slaps its booster.
Dreamchaser will have to wait until 2025.
ISS destruction duty to SpaceX
Collins Aerospace gets out of the space suit business.
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Find out more at NASA Ames official Arcjet site.
nasa.gov/ames/arcjet-complex
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However, engineers have come up with new control algorithms to allow operation with fewer gyroscopes, and this is what I want to explain.
NASA's explanation of the process
science.nasa.gov/mission/hubble/observatory/design/hubble-one-gyro-mode
The scientific paper on these new control laws:
HUBBLE SPACE TELESCOPE REDUCED-GYRO CONTROL LAW
DESIGN, IMPLEMENTATION, AND ON-ORBIT PERFORMANCE
ntrs.nasa.gov/api/citations/20080023344/downloads/20080023344.pdf
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And thats still not all the big stories
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There were a few changes to this flight profile, and in particular, intentionally discarding the hot staging ring appears to have freed up enough margin to make a soft landing of the booster possible.
But the real story of this flight was watching as the heat of atmospheric entry burned through at least one of the control flaps, but the spacecraft kept flying, remained in control and proceeded to a soft touchdown in the Indian ocean. The hardware was on show, but the software was performing the real miracles today.
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But the technology is back on the roadmap and is expected to be tested as soon as 2027 with the DRACO mission.
So in this video I want to explain why nuclear rockets can beat chemical rockets and Ion engines for the right application, and talk about some of the unique engineering and mission planning problems that are associated with nuclear powered spaceflight.
Lots of credit for collecting the research goes to Beyond Nerva
beyondnerva.com
And of course to Atomic Rockets
projectrho.com/public_html/rocket
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And that's just the start, there are lots of panels from the US and Soviet space programs,
High quality images and discussion of the importance of many of these can be found on Steve's excellent Flickr account
flickr.com/photos/jurvetson
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This was just 2 hours of us looking at things and Steve enthusiastically explaining the history of things while I tried to capture the tour on my phone
(I had planned to bring better cameras, but messed that up)
There's more to come!
All these exhibits come with better photographs and minus the space geek banter at his Flickr album:
flickr.com/photos/jurvetson/albums/72157623704246792
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And, Rocket Factory Augsburg test a rocket stage in Scotland at Saxa Vord spaceport!
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There's a lot of specialized techniques and terminology involved, a lot of understanding and management of your position, orientation, velocity and of course energy.
I flew with Hoagy, I brought the cameras, he flew the plane, narrated the process, and I filled in the gaps.
Music:
The Whole Other - 'Between The Drops'
Unicorn Heads - 'Vital Whales'
TrackTribe - 'Coastline'
Quincas Moreira - 'Airborne'
Jeremy Blake - 'Sunspots'
TrackTribe - 'Monument'
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Which oddly enough means that between the last flight of Shuttle and the first Crewed flight of Dragon it was the best operational human rated spacecraft.... I never thought about that until I wrote this description.
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Track GPS Interference using ADS-B data
gpsjam.org
Sorry about the crappy AI Generated thumbnail, I'm just running out of spare time.
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Discovering an asteroid involves more than just taking a photo of a space rock, it's required to compute the orbit of the object and that requires multiple images over time and lots of math. Once you have an orbit your can figure out where it will be in the future and the past, and importantly, determine that it's not the same as and of the million other asteroids already known.
In recent years new cloud computer resources and software have enabled scientists at the Asteroid Institiute to explore old data and find new discoveries, specifically 27,500 asteroids were found in images from the Dark Energy Survey which had primarily been looking at supernovae.
Find out more about the Asteroid Institute Here:
b612.ai
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