Space Exploration & Solar System

Any vehicle or device designed for travel or operation outside Earths atmosphere

The 4 largest & brightest natural satellites of Jupiter, discovered by Galileo

The spinning of Earth on its axis that causes day and night

Large artificial facility occupied for long periods serving as a work space to conduct research

A celestial body like a small planet, but lacking criteria to be classified as a planet.

Earth's natural satellite that revolves around Earth from west to east.

Orbiting space station built beginning in 1998 with the cooperation of 16 nations.

A spacecraft that gets power from an engine full of chemical propellants

Remains of meteors that have struck the surface of Earth or the Moon.

This is a region of our solar system between inner & outer planets where asteroids orbit.

This is a large piece of rock or metal made of the same material that made the planets.

Unmanned spacecraft designed to explore the Solar System and transmit data back to Earth.

Reusable space craft designed to carry people & supplies between Earth's surface and orbit

These are optical instruments used to view distant objects.

Any spacecraft or natural object that orbits a more massive object

Region beyond the planets, larger than asteroid belt, with remnants of solar system formation

Luminous celestial body providing our solar system with light and heat

This is Earth's year-long elliptical orbit around the Sun

Small chunk of rock and dust existing outside Earth's atmosphere.

Body consisting of ice, dust, and rock that orbits the Sun in a long, narrow ellipse.

The Sun together with planets and other objects held by its attraction, revolving around it.

The investigation of conditions in space using satellites, space probes and manned spacecraft.

This is a meteoroid that burns upon entry into and movement through Earth's atmosphere.

One of 8 large spherical celestial bodies revolving around the Sun

A vehicle used to explore the surface of a celestial body like the moon or Mars