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Questions regarding a 'sail' that can be attached to spacecraft to harness the sun's radiation to propel a ship in one direction or another.

9 votes
2 answers
1k views

Is there any more information available on JWST's "aft momentum flap"

I gather that the James Web Space Telescope (JWST) has just deployed its "aft momentum flap". However I cannot find much other information. It is described as the "aft" momentum flap as if there migh …
Roger Wood's user avatar
  • 3,924
8 votes
1 answer
1k views

To what extent could JWST continue to be useful after the propellant runs out?

I see a similar question answered, but this is perhaps more specific. There's a lot of description about the James Web Space Telescope (JWST) operation during its planned mission. But I gather JWST h …
Roger Wood's user avatar
  • 3,924