| A | B |
|---|
| asteroid belt | the region of space between the orbits of Mars and Jupiter in which most asteroids are located |
| constellation | a group or configuration of objects such as satellites, spread out in a set of orbital rings |
| debris | the remains of anythings broken down or estroyed |
| Geosynchronous Earth Orbit (GEO) | a circular orbit around the Earth having a period of 24 hours, enabling a satellite to remain in a fixed position above the Earth |
| hypervelocity | extremely high velocity, up to 15,000 miles per hour |
| Low Earth Orbit (LEO) | an orbit that is not more than 2,000 km above the Earth's surface |
| meteors | small solid objects passing from space into the Earth's atmosphere |
| Meteor Crator | a site near Winslow, Arizona formed when a meteor crashed into the round, causing an explosive reaction |
| meteorite | a mass of stone or metal that has reached the Earth from space |
| orbit | the curved path, usually elliptical, of an object's movement around a celestial body |
| satellite | an object, whether natural or manmade, that orbits a celestial body |
