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Mercury Capsule Exhibit to Preview Cosmosphere Satellite Location
On This Day in Space! Oct. 23, 2007: Space Station's Harmony Module Launches on STS-120
Pulsar Discoverer Jocelyn Bell Burnell Talks About Her Amazing Find: Watch Live Thursday
Dizzying Array of Stars Dazzles in New Hubble Photo
First 'Orphan' Gamma-Ray Burst Reveals Insight into Powerful Stellar Explosions