Classified Shuttle Missions: Secrets in Space

[Claire.]

Classified Shuttle Missions: Secrets in Space

The space shuttle was NASA's primary option for transporting astronauts to Earth orbit between 1981 and 2011. The five shuttles that went into space flew 135 missions. Crews deployed satellites, conducted experiments and studied the Earth. A handful of the missions were classified, and little is known about these secret missions, even 30 years after the fact.

Read more: Space.com

[psyche101]

Interesting I wonder what a Multi-Purpose Release Canister holds?

One thing, not all the secret missions are all that secret!  Some movements get tracked by amateurs.

LINK - Secret X-37B Space Plane Spotted by Amateur Skywatchers