Methods of accelerating in space?

In summary, the conversation discussed ideas for accelerating spacecraft in space and the methods currently in use. Some potential methods mentioned included traditional rocket propulsion, ion propulsion, solar sails, and gravity assist. The conversation also referenced a useful NASA reference for more information on in-space propulsion.
  • #1
MetaUniverse
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hello !

I was thinking about some ideas of new ways to accelerate spacecraft s in space, but for that it would be helpful to know which methods are currently in use. I'm talking about the acceleration in general, so both at a place in space influenced more by gravity ( like Earth orbit ) and a place without that much of a gravity influence ( if that makes a difference in how to accelerate)
 
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  • #2
Some that come immediately to mind are:
Traditional rocket propulsion with gas
Rocket propulsion with ion propulsion (see http://www.nasa.gov/centers/glenn/about/fs21grc.html )
"Sails" to catch solar wind. (see http://www.nasa.gov/centers/marshal...sting-of-revolutionary-e-sail-technology.html )
Gravity assist "sling shot" around a fast moving planet. (see https://solarsystem.nasa.gov/basics/grav/primer.php )

BINGO! Here is a good reference: https://www.nasa.gov/pdf/501329main_TA02-InSpaceProp-DRAFT-Nov2010-A.pdf
 
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  • #3
FactChecker said:
Some that come immediately to mind are:
Traditional rocket propulsion with gas
Rocket propulsion with ion propulsion (see http://www.nasa.gov/centers/glenn/about/fs21grc.html )
"Sails" to catch solar wind. (see http://www.nasa.gov/centers/marshal...sting-of-revolutionary-e-sail-technology.html )
Gravity assist "sling shot" around a fast moving planet. (see https://solarsystem.nasa.gov/basics/grav/primer.php )
As well as,
https://en.wikipedia.org/wiki/Breakthrough_Starshot
FactChecker said:
Good link, page 20 covers it nicely.
 
  • #4
Thank you ;)
 

1. How does a spacecraft accelerate in space?

A spacecraft can accelerate in space through the use of engines, either chemical or electric, which produce thrust. This thrust propels the spacecraft forward, increasing its speed and acceleration.

2. What is the difference between chemical and electric propulsion?

Chemical propulsion uses the energy released from a chemical reaction to produce thrust, while electric propulsion uses electrical energy to accelerate charged particles, propelling the spacecraft forward.

3. What are the advantages of using electric propulsion?

Electric propulsion offers a higher specific impulse (fuel efficiency) compared to chemical propulsion, allowing for longer missions with less fuel. It also produces less vibrations and is more precise in controlling acceleration.

4. Can a spacecraft accelerate continuously in space?

Yes, a spacecraft can accelerate continuously in space using electric propulsion, but it is limited by the amount of propellant it carries and the efficiency of the propulsion system.

5. Are there other methods of accelerating in space besides using engines?

Yes, other methods include using gravity assists from celestial bodies, like planets or moons, to increase speed, and using solar sails to harness the momentum of photons from the sun.

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