The Hubble Space Telescope
Launched in 1990 it has produced some of the most beautiful and detailed images ever taken of space. It is the only space telescope that can be repaired from space.
Discoveries Made by Hubble:
-Discovered the age of the universe to be between 14-15 billion years
-Played a key role in the discovery of Dark Energy
-Has found galaxies from as far back as 13.7 billion years ago, when the earth was less than a billion years old
-Has discovered many planets beyond our solar system