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These words will continue to help students learn about space.
Terms in this set (12)
The mean distance from the Earth to the Sun, approximately 149,600,000 kilometers (symbol AU), used to measure distances in the solar system.
A large artificial satellite on which people can live and work for long periods.
A spacecraft designed to land on the surface of a planet or moon.
A spacecraft that has various scientific instruments that can collect data, including visual images, but has no human crew.
The passage of a spacecraft near a planet, a moon or an asteroid.
An object that revolves around another object in space.
A telescope that uses a curved mirror to collect and focus light.
A telescope that uses convex lenses to gather and focus light.
A device that expels gas in one direction to move in the opposite direction.
The reaction force that propels a rocket forward.
Speed in a given direction.
A spacecraft that can carry a crew into space, return to Earth, and then be reused for the same purpose.
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