The Hubble Space Telescope is a large telescope in space. NASA launched Hubble Space Telescope in 1990. Hubble is as long as a large school bus. It weighs as much as two adult elephants. Hubble travels around the Earth at about 5 miles per second. It takes the pictures of planets, stars and galaxies. Hubble Space Telescope has seen stars being born. It has also seen stars die. It has seen galaxies that are trillions of miles away.