Skip to main content
Polygnome's user avatar
Polygnome's user avatar
Polygnome's user avatar
Polygnome
  • Member for 8 years, 2 months
  • Last seen this week
100 votes

What can the KSP game actually teach about spaceflight and orbital mechanics, and what are its limitations?

44 votes
Accepted

When did the concept of "stages" enter rocketry?

42 votes
Accepted

Why use a retrograde orbit?

34 votes

Has any object launched from Earth gone into the Sun?

28 votes

How is lower/no gravity simulated on a planet with gravity, without leaving the surface?

28 votes

Name for geostationary orbit around another planet

24 votes

Does the speed of ISS slow down at the time of a spacewalk or does it become stationary?

22 votes
Accepted

What was the space helmet "vomit port"?

18 votes
Accepted

Apollo Suit sublimation coolers

18 votes
Accepted

Is it correct to say that a LH2/LOX rocket uses water as propellant?

17 votes
Accepted

Is going to Ceres "as easy as going to Mars" like this aerospace engineer says?

16 votes

temperatures of metal facing the sun in space

15 votes

Is the EU really banning "toxic propellants" in 2020? How is that going to work?

13 votes
Accepted

Are patched conics (and by induction, KSP) "useless" for simulating ion propulsion?

12 votes

Why did moon dust not cause problems on Apollo during the return flight from the Moon?

12 votes
Accepted

Why do all recent proposed lunar landers have payloads on top?

12 votes
Accepted

What are these giant NASA boxes?

12 votes
Accepted

Is it possible to control the operation of the Hubble Space Telescope from ground stations?

12 votes
Accepted

Why soviet didn't bring back "laika" to earth & how re-entry logic works?

10 votes
Accepted

Are more details about the fatal rocket motor accident at Cape Canaveral in April 1964 available?

10 votes
Accepted

What is KSC's HURCON II?

10 votes
Accepted

Would you be able to hear the radio playing in the Falcon Heavy Tesla car?

9 votes

Is there any regulation against sending stuff to space that you don't need there, like the Tesla roadster?

9 votes

What are the uses of the NASA core Flight System (cFS)?

8 votes

Rocket explosion compared to kT of TNT; has one ever knocked something over at a distance?

8 votes

What was the cause of the cooling system issue in Sputnik 2?

8 votes
Accepted

How is the space probe powered to travel a huge distance in a deep space mission?

8 votes
Accepted

What was the point of the Redstone rocket when there was the X-15 rocketplane?

8 votes
Accepted

Why isn't the Kármán line itself considered to be in outer space?

7 votes

To what extent is the orbital Time Period of ISS affected by soyuz thrusters?