Galileo
* The telescope helps us understand space and the stars and other planets.
looking at the stars moon and other planets
That is a telescope
THEY DISCOVOR STUFF like stars and planets
A spectrometer is used to determine the composition of stars, and how fast they are going relative to Earth.
Asteroids.
A telescope
Arecibo
the sun, stars, planets, moon, through a telescope
An astronomical telescope is one that is used in astronomy - i.e., to watch stars, planets, comets, etc.
To see planets, stars, comets and to take pictures.
Galileo Galilei used a telescope to make detailed observations of the stars and planets. He is most well known for suggesting that the Earth revolves around the Sun, and not the other way around.