Space exploration the process of traveling into space and learning about the conditions in space and on stars, planets, and their moons, This is done by three means:

• Satellites - spacecraft that orbit the earth
• Space probes -spacecraft that go about the solar system and that may or may not orbit another heavenly body
• Spacecraft with human crews such as rockets, space stations and the space shuttle.

Click on the links below to learn more about the history of space exploration:

• Unmanned Satellites and Space Probes
• Manned Space Exploration