HST, or more commonly known as the Hubble Space Telescope, the telescope is currently orbiting Earth and was named after Edwin Hubble who was a famous Astronomer.Its position being outside the Earth's atmosphere provides significant advantages over ground-based telescopes — images are not blurred by the atmosphere, there is no background from light scattered by the air, and the Hubble can observe ultra-violet light that is normally absorbed by the ozone layer in observations made from Earth.

Thats just the beginnging of what i added, i added alot, ddint want to make it appear to be a big post.

Fox

[edit on 27-1-2008 by ProTo Fire Fox]