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Q:

How do scientists send a satellite to planets like Mars, as there is no force in vacuum to move the satellite?

A:

Scientists are able to send satellites to planets because rockets are used to thrust these satellites to space. Thrust is the force of flight that pushes an aircraft or spacecraft in the direction of motion. While there are two forces of flight, lift and drag, which do not act in a vacuum, thrust and weight can still act in the vacuum of space.

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Categories: Forces of Flight