The Space Shuttle Challenger Accident Investigation

Thirty years after the space shuttle Challenger disintegrated in the clear, cold sky high above Cape Canaveral, the commander’s widow no longer feels anger at NASA and the management missteps and schedule pressure that kept the orbiters flying despite a fatal flaw in their solid-fuel boosters.

A spectacle never seen before — a space shuttle external fuel tank traversing city streets — was witnessed in Los Angeles on Saturday as the relic was moved to the museum that will construct a rocket science attraction.

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.