Definitions
There is 1 meaning of the phrase
Ion Engine.
Ion Engine - as a noun
A type of reaction-propulsion engine to propel rockets in space; a stream of positive ions is accelerated to a high velocity by an electric field
Example Sentences
"The ion engine is a type of electric propulsion used in spacecraft."
"NASA's Deep Space 1 mission was the first to successfully test an ion engine in space."
"The ion engine uses electric power to accelerate ions and produce thrust."
"Scientists are constantly working on improving the performance of ion engines."
"The Dawn spacecraft used ion engines to explore asteroids Vesta and Ceres."
