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1 vote
1 answer
6 views
Where will Elon's rocket hit the Moon? Will it be visible from Earth?
2 votes
1 answer
163 views
Is this JWST Halo orbit plot fouled up somehow?
6 votes
3 answers
398 views
Is JWST Halo orbit prograde or retrograde and why?
4 votes
2 answers
50 views
BBC: "A rocket launched by Elon Musk's space exploration company is on course to crash into the Moon and explode." Will it really explode?
1 vote
0 answers
18 views
BBC: "In 2009 Prof McDowell & other astronomers performed an experiment in which a similar-sized rocket was crashed into the Moon." Really? Which one?
2 votes
0 answers
16 views
Delta-v to hit the moon: is reaching Lunar L1 enough?
3 votes
1 answer
51 views
Why isn't NASA planning on saving some of the RS-25Ds due to their historical significance?
2 votes
0 answers
8 views
How much margin does JWST have for station keeping in Halo orbit?
7 votes
1 answer
140 views
How do they know the sub-surface radar reflections (potential underground ice or "lakes") on Mars are not natural dielectric or metallic in origin?
4 votes
2 answers
532 views
Was New Horizons launched on a copper rocket?
5 votes
1 answer
80 views
Difficulties with higher order Runge-Kutta implementations
19 votes
3 answers
5k views
Did the Mars rovers actually confirm the gravity of Mars?
4 votes
3 answers
344 views
Do Curiosity's reported measurements of Mars' surface gravity (~3.717 m/s^2) include centrifugal effects?
11 votes
2 answers
1k views
Since L2 has no visible marker, how will James Webb determine its relative position and velocity for station keeping?
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