Astronomers study the electromagnetic radiation emitted by distant stars and planets to determine how far away they are, their temperatures and...

Astronomers study the electromagnetic radiation emitted by distant stars and planets to determine how far away they are, their temperatures and speed, etc. Explain why scientists built the NASA Hubble Space Telescope. What advantage does it have 560 km above sea level compared to the Keck telescope in Hawaii, which is 4 km above sea level.