The Space Shuttle Challenger Accident Investigation

Watch the shuttle Atlantis’ backflip, which occurred five years ago today, before docking to the International Space Station.

A last-of-its-kind piece of space hardware — the only remaining shuttle external fuel tank — makes its way along the city streets of Los Angeles to the California Science Center.

The tugboat and barge transporting the last space shuttle external tank to its display venue in California have reached the inlet to the Panama Canal, now just days away from sailing into the Pacific.