What are some interesting facts about NASA that most people wouldn't be aware of?

The Columbia Shuttle Disaster

This is a picture of an astronaut helmet a Texas farmer found in his field following the Columbia space shuttle disaster that killed several crew members in 2003. Along with the helmet and pieces of the shuttle, they also found human body parts, including a torso, arms, feet, and a heart.

The Challenger Shuttle Disaster.

One of the main engineers behind the Challenger space shuttle said that NASA ignored multiple warnings against launching in cold weather. The night before the launch, he told his wife, “It’s going to blow up.”

He was one of five engineers who told NASA to postpone the launch, but they didn’t listen to their warnings. The shuttle exploded 73 seconds into its flight, killing all seven crew members on board.