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Rikki-Tikki-Tavi
  • Member for 8 years, 3 months
  • Last seen more than a month ago
89 votes
Accepted

Why is gold used in space technology to protect from heat radiation?

58 votes

Why was Venus rather than Mars targeted for the first interplanetary landings?

50 votes
Accepted

Soyuz landing ground detection

35 votes
Accepted

How can a 9-engine Falcon rocket be cheaper than single engine rockets?

27 votes

Can Voyager still use its thrusters to avoid hazards?

22 votes
Accepted

What is the possibility of Voyager 1/2 colliding with matter (Asteroids or planetoids) present in space?

20 votes
Accepted

Is there enough iron on the Moon to support industry?

19 votes

What is the mysterious "Ball of Mars"?

18 votes
Accepted

How similar are Soyuz and Progress?

16 votes
Accepted

Does the ISS medical inventory include a sun-tan/sunscreen lotion/cream?

16 votes
Accepted

What fraction of a liquid rocket launching from Mars to return to Earth would be fuel?

16 votes
Accepted

How does propellant flow work in a nuclear thermal rocket?

15 votes

Is it possible building an Space Shuttle in reinforced concrete?

15 votes

Can it be said that Venus is covered by an ocean rather than atmosphere?

13 votes

Why do artificial satellites need orbit correction, but natural ones don't?

13 votes
Accepted

Why do the shapes of these two exhaust plumes from an Atlas V 411 look different?

13 votes

How can delta-v and aerobraking as shown in this chart be explained?

12 votes

Would reusable rockets render the idea of space elevators useless?

12 votes

Is it possible to stand still in space?

12 votes
Accepted

What would determine the interior temperature of a large space station?

12 votes

Why are rocket engines operating above 100% often considered nominal?

11 votes

Titan rover survival challenges

11 votes
Accepted

Could steam be used as a efficient power source for a space craft?

10 votes

Why does Soyuz use a single large parachute vs 3 on most American capsules?

10 votes
Accepted

Why do Soyuz landings seem to be overshot?

10 votes

What do rockets eject?

10 votes
Accepted

When approaching target planets/moons, how frequently do spacecrafts take photographs?

9 votes

Is there an upper limit for the internal size of space stations?

9 votes
Accepted

Has any work been done on alternatives to rolling element bearings in rocket turbopumps?

9 votes

Are ICBMs and orbital launchers similar enough to be co-developed today?