By Associated Press

Andrew Feustel, left, and John Grunsfeld work to upgrade the Hubble Space Telescope during a spacewalk, Monday, May 18, 2009.

The Atlantis astronauts plan to release the space telescope Tuesday. The shuttle is scheduled to land Friday at the Kennedy Space Center.

Hubble Fact: Hubble completes one orbit around the Earth (crossing over the same longitude line) every 96 minutes. Its speed is approximately 8 km per second (5 miles per second).

Spacewalkers Complete Hubble Repairs

Hubble Telescope – Wikipedia

Hubble Home Page

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