The Hubble Space Telescope is very big about the size
of a large school bus or tanker truck. The tubular part of
Hubble's body is 14 feet across, and the telescope stands
43 feet tall about as high as a five-story building.
On the ground, it would weigh over 25,000 pounds, but in space
it weighs nothing. When the space shuttle Discovery carried
Hubble into orbit, the telescope completely filled Discovery's
cargo bay. Hubble is pictured in Discovery's cargo bay during
the December 1999 servicing mission.