1.
A person trained to travel in space
2.
A vehicle used for space travel
3.
A man-made object placed in orbit around a planet
4.
A small celestial body composed of ice and dust that orbits the sun
5.
The natural satellite of Earth
6.
The fourth planet from the sun, often called the "Red Planet"
7.
A small rocky body orbiting the sun
8.
An instrument used to observe distant objects in space
9.
A large system of stars, gas, and dust held together by gravity
10.
The curved path of a celestial object around a star or planet
