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kim holder
  • Member for 8 years
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85 votes

Why are we trying to build a base on Mars before the Moon?

61 votes
Accepted

Why does the ascent stage of Apollo 11's lunar module look like it's made of paper?

46 votes

How do we know the Apollo Moon landings are real?

44 votes
Accepted

Why are spaceship capsules frustum shaped?

38 votes
Accepted

What does 'Switch SCE to AUX' mean?

34 votes
Accepted

Is there any evidence that NASA was worried about deep lunar dust?

27 votes
Accepted

Dawn Spacecraft: Why are the orbits so high?

24 votes
Accepted

Which, if any, US laws apply on the ISS?

23 votes

What is the largest hurdle of the mission to Mars?

21 votes

How much power would a spacecraft's magnetic shield require?

21 votes

What is the most heated exoatmospheric conflict to-date?

17 votes

Why only 12 men have made lunar-walks and not all 18 men?

15 votes

What term can we use to describe a planet's or dwarf planet's nearest distance to Earth?

15 votes

Engineering difficulties towards near-perfect rockets?

15 votes

What is the deepest part of the moon on the near side?

14 votes
Accepted

Could Starman get ejected from the Solar System?

14 votes
Accepted

Is this explanation for the SpaceX 1-Sept-2016 anomaly plausible?

14 votes

What existing life on Earth is best suited for the Martian environment?

14 votes

Were decommissioned Cold War missiles repurposed for peaceful spaceflight?

13 votes
Accepted

Would working at night on the surface of Mars/Luna protect from radiation?

13 votes

Pushing down a projectile from LEO

13 votes

If an unknown ship entered Earth orbit, would it be detected?

13 votes
Accepted

Stripe of high def imagery on Google Moon

12 votes

How could one navigate on Mars?

12 votes
Accepted

Apollo 17, Lunar Roving Vehicle walkback limit "relaxed"?

11 votes

Why does the International Space Station have a downward facing light?

11 votes
Accepted

Can we not get outside the Local Galactic group?

10 votes
Accepted

What impact would a pea size meteor have when it hits the ground?

10 votes
Accepted

Copper abundance in the Moon

9 votes

How accurate are modern ephemerides, and how does their accuracy degrade over time?