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12:36 AM
@ErinAnne I loved WordPerfect! Always got a little thrill out of "Reveal Codes"
@geoffc that's pretty amazing service - obviously for a very special customer :-)
Lightsail 2 certainly took quite a nosedive! And it didn't even circularize first. From planetary.org/mission-control
I wonder - did they use the sail as a giant aerobrake to bring it down quickly? At what point was there a crossover from primarily "photobraking" to primarily aerobraking forces?
What got me thinking about LightSail 2 was Gizmodo's Watch Live as NASA Launches Solar Sail to Test Sunlight-Propelled Space Travel The mission will ride on board Rocket Lab's Electron, reusing one of the rocket's boosters for the first time.
 
1:13 AM
It seems that NASA's Next-Generation Solar Sail Mission stated goals are to be a technology demonstrator for future solar sail missions. My guess is that it's one of those 90 day missions that if it work well they'll keep operating it much longer.
(I'm looking for the "why are missions always about 90 days" question to link here but can't find it right now)
 
 
3 hours later…
4:32 AM
I'm not advocating watching/listening, but it exists. I don't know if there is any actual technical explanation, or if all the plots of data is for other types of propulsion that don't break the laws of physics.
 
 
4 hours later…
8:12 AM
@uhoh apparently this guy is claiming to have already reached 1G / TRW > 1 interestingengineering.com/innovation/…
so he should be demonstrating it flying around. ought to be pretty convincing
obviously it's total bunk, but hey, at least it's a refreshing change from "is it a measurement we didn't take carefully enough, or have we broken physics? I'm great so I probably broke physics!"
 
 
5 hours later…
1:03 PM
 

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