This video documents a solemn moment in spaceflight history: astronauts entering the space shuttle ahead of a mission that would end tragically just 73 seconds after liftoff. The footage is quiet and procedural, showing routine preparations that, at the time, appeared no different from any other launch day. Seen in retrospect, these images carry profound weight. They remind us of the risks inherent in space exploration and the bravery of those who accept them. The clip serves as a respectful rec