Tragedy forced NASA to evolve. After Columbia burned up on reentry, engineers asked if rescue was possible - while years earlier, Challenger's explosion sparked plans for safer unmanned shuttles.

You can now own a $1 gold coin celebrating one of America’s most revolutionary achievements: the NASA Space Shuttle program. The latest variant in the ongoing American Innovation $1 Coin series is ...

Discover how the International Space Station stayed alive after using Soyuz support and new shuttle inspections to keep science going.