Relier Pairs Mystery Writing Glossary AsteroidsVersion en ligne vocab par Denise Kesel 1 impact 2 deflect 3 collision 4 meteor 5 diameter 6 asteroid 7 orbit 8 atmosphere 9 velocity circling another object, like the Moon around the Earth speed the force of one thing hitting another a small object from space that enters the Earth's atmosphere. They often appear as glowing streaks in the sky or "Shooting Stars" one object hitting into another object a rocky object in outer space to cause an object to change direction after hitting something air that surrounds a planet the distance across an object