- flew all the "return-to-flight" missions after the Challenger and Columbia disasters
- launched the revolutionary Hubble space telescope
- first space shuttle to dock to the International Space Staation
- flew the 100th space shuttle mission
- and, first shuttle to launch on July 4th
These are just some of its achievements.
Discovery flew in space for 148 million miles in space, which is enough to go to the sun and come back halfway!!A It spent a total of 365 days(a year) in Earth orbit.