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Results tagged with solar-sail
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user 2752
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.
4
votes
Accepted
Can an onboard laser propel a solar sail?
Can an onboard laser propel a solar sail?
In theory, a tiny, tiny, tiny little bit. In practice, no. You'd be better off without the sail and pointing the laser backwards, but you'd be even much …
- 77.4k
2
votes
How effective are solar sails to deflect an asteroid?
The National Academy of Sciences undertook a study, funded by NASA, regarding near-Earth object detection and mitigation. This study looked at four mitigation techniques: nuclear, kinetic impactors, g …
- 77.4k
7
votes
Accepted
How will NEA Scout control its attitude during deep space flight & keep its camera steady wi...
The NEA Scout contains multiple items aimed at controlling attitude:
An inertial measurement unit that contains rate gyros that sense the vehicle's rotation rate with respect to inertial,
A star trac …
- 77.4k
10
votes
To what extent could JWST continue to be useful after the propellant runs out?
Could JWST be moved to an Earth-trailing orbit (or other useful orbit) without sacrificing too much precious remaining propellent?
The JWST will be moved to an Earth-trailing heliocentric orbit as a …
- 77.4k