APR 14, 2015 6:33 PM PDT

Solar Electric Propulsion

WRITTEN BY: Andrew J. Dunlop
Artist's conception of a spacecraft with solar electric propulsion

Solar electric propulsion uses solar panels to power an ion drive. They require no chemical fuel so they are much lighter, can burn indefinitely, and cost about one tenth as much as chemical rockets.
About the Author
Andrew J. Dunlop lives and writes in a little town near Boston. He's interested in space, the Earth, and the way that humans and other species live on it.
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