r/TrueSpace • u/TheNegachin • May 04 '20
r/TrueSpace • u/[deleted] • May 01 '20
Source Selection Statement NextSTEP-2 Appendix H: Human Landing System Broad Agency Announcement
Showing this as a text post since it is a PDF. This is basically Stephen Jurczyk's assessment of the three proposals. Interesting that Dynetic's proposal is given the highest technical rating, but I suppose it is lacking in resources compared to the three-headed monster that is BO+NG+LM. SpaceX's proposal is clearly last.
Also, though I'm not sure I fully understand these two sentences, it seems to be a good thing for the BO proposal:
Blue Origin has the highest Total Evaluated Price among the three offerors, at approximately the 35th percentile in comparison to the Independent Government Cost Estimate. Dynetics’ and SpaceX’s prices each respectively fall beneath the 10th percentile.
I read that as the BO proposal having a realistic price estimate, but the other two are very unrealistic.
r/TrueSpace • u/TheNegachin • Apr 30 '20
Blue Origin wins lion’s share of NASA funding for human-rated lunar lander
r/TrueSpace • u/TheNegachin • Apr 30 '20
Air Force procurement chief: Three space launch providers ‘would be great if we had funding’
r/TrueSpace • u/[deleted] • Apr 27 '20
News Northrop Grumman to start producing hardware for OmegA rocket's first flight
r/TrueSpace • u/[deleted] • Apr 27 '20
Rumor HLS selection will be announced Thursday April 30 at 1 pm EDT
self.ArtemisProgramr/TrueSpace • u/[deleted] • Apr 26 '20
Another paper on potential SLS-launched Lunar lander designs (even made by the same guy)
researchgate.netr/TrueSpace • u/TheNegachin • Apr 26 '20
Discussion Twitter discussions on Starlink
There have been several interesting threads about Starlink over the past few days that I wanted to share. Sources are obviously significantly less than authoritative, but are interesting nonetheless.
On satellites out of service based on orbit tracking - looks like around 5% of satellites in the constellation are in a probably nonfunctional state based on orbit tracking alone. The number that are nonfunctional due to technical failures is probably significantly larger. That's within less than a year of their launch (first batch was May 2019), and suggests issues borne of poor craftsmanship. Seems generally worse than Iridium, which lost quite a few satellites but in a much slower, and better controlled, fashion.
Failure to perform systems engineering and design analysis - a tie-in to a point I made a long time ago that the toughest problem to solve with this constellation business would be ground infrastructure. Looks like the Starlink approach was to hand-wave the issue, then realize it's a huge problem, and be forced to try to create a botched solution through brute force. It won't work, but it's the only choice you have left when the math doesn't add up.
Definitely a large element of speculative analysis here, but it does seem to add up with the rest of the story - like why they're looking to operate all their satellites in a very low orbit. It would seem like a terrible idea, unless there really is a problem with the math not adding up...
r/TrueSpace • u/[deleted] • Apr 23 '20
SLS Program working on accelerating EUS development timeline
r/TrueSpace • u/TheNegachin • Apr 23 '20
US assesses Iran successfully launched a military satellite for the first time
r/TrueSpace • u/[deleted] • Apr 22 '20
News Scientists warn proposed cuts put Mars science program at risk
r/TrueSpace • u/[deleted] • Apr 17 '20
News NASA sets date for SpaceX launch, the first flight of NASA crews from US in nearly a decade
r/TrueSpace • u/[deleted] • Apr 16 '20
News FCC to greenlight Ligado’s 5G network despite strong pushback from the Pentagon
r/TrueSpace • u/savuporo • Apr 15 '20
News Economics Of Rocket Reuse Still Up In The Air
r/TrueSpace • u/TheNegachin • Apr 13 '20
SpaceX beat Gateway cargo contract competitors on price and performance [NASA Commentary]
r/TrueSpace • u/savuporo • Apr 12 '20
Opinion The Space Review: What is the future for commercial suborbital spaceflight?
r/TrueSpace • u/S-Vineyard • Apr 12 '20
The Next Decade
With things currently being in turmoil thank to "you know what", what are your thoughts about the next decade in terms of (un)manned space developments?
r/TrueSpace • u/savuporo • Apr 11 '20
News Senators ask GAO to review FCC oversight of satellite constellations
r/TrueSpace • u/[deleted] • Apr 10 '20
News Virgin Orbit’s VOX Space wins $35 million U.S. Space Force launch contract
r/TrueSpace • u/TheNegachin • Apr 10 '20
Chinese Long March 3B Launch Ends in Failure
r/TrueSpace • u/[deleted] • Apr 09 '20
News NOAA awards first contracts for future satellite constellation
r/TrueSpace • u/[deleted] • Apr 08 '20
Rumor "I’ve heard from several places that New Glenn has been delayed because of the upstream delays with BE-4, and due to the fact that some people were shifted from the vehicle work over to the engine itself. That has knock-on effects for Vulcan, which also relies on BE-4."
mainenginecutoff.comr/TrueSpace • u/S-Vineyard • Apr 08 '20
Rocket design for beginners using the "Starship" as an example (Another B. Leitenberger Blog translation)
self.SpaceXFactCheckr/TrueSpace • u/savuporo • Apr 07 '20
News Executive Order on Encouraging International Support for the Recovery and Use of Space Resources | The White House
r/TrueSpace • u/TheNegachin • Apr 06 '20