Merwin2.28.12

A space station (or orbital station) is a spacecraft capable of supporting a crew which is designed to remain in space (most commonly in low Earth orbit) for an extended period of time, and to which other spacecraft can dock.

The Kuiper Belt is between Mars and Jupiter.

A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engine.

A model is a more complicated version of some part of the natural world that helps explain how it functions.

A meteoroid is a sand- to boulder-sized particle of debris in the Solar System. The visible path of a meteoroid that enters Earth's (or another body's) atmosphere is called a meteor. A meteorite is a portion of a meteoroid or asteroid that survives its passage through the atmosphere and impact with the ground without being destroyed.

The distance between Earth and the Sun is considered one astronomical unit (AU).

The Oort Cloud is made up of billions of asteroids.

Comets are made up of ice and dust.

Asteroids are made up of ice and dust.

The Space Shuttle was a manned re-useable craft that NASA operated from 1981-2011.

The Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it.

Space is the void that exists between objects like planets and stars.

A space probe gathers information from earth and sends it back to earth.

The heliosphere is the immense magnetic bubble containing our solar system, solar wind, and the entire solar magnetic field.