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Questions about engines used in space that accelerate ions to create thrust.

21 votes
7 answers
13k views

Can ion thrusters be scaled up?

All ion thrusters are quite small. Having read through the more approachable information about them, as they use physics pretty beyond me, I don't understand what it is about them that makes it neces …
kim holder's user avatar
  • 21.5k
2 votes
1 answer
183 views

Where should ion drives be placed on a rotating space station of the lop-sided dumbbell vari...

I have been working on a model of a proposed artificial gravity facility by Joe Carroll, based on this paper. It is an initial concept paper and it doesn't spell everything out, so I am trying to figu …
kim holder's user avatar
  • 21.5k
14 votes
1 answer
878 views

How large a body could a probe with ion engines land on and launch from?

Researching small asteroids up close by use of robotic probes seems like an appealing near-future mission. One option is a sample return mission that goes to one large body, another is a mission where …
kim holder's user avatar
  • 21.5k
13 votes
2 answers
921 views

How quickly do the Van Allen radiation belts degrade solar panels?

I heard the other day that to take cargo from Earth to a Lagrange point or the Moon using solar electric propulsion would be a problem because the Van Allen radiation belts would degrade the solar pan …
kim holder's user avatar
  • 21.5k