Space

Stone also oversaw the mission that landed the Pathfinder rover on Mars.

He set a record for the longest freefall skydive.

Alan Shepard was known for an experience that only a few…

He was second person ever to pilot a private craft into space.

He spent 437 consecutive days in space, a record that still stands.

He co-founded the technology company Medidata Solutions.

Hughes-Fulford did biomedical research in space.

On January 28, 1986, Americans watched the launch of Space Shuttle Challenger.

Feynman also developed a method to predict sunspot cycles.

He commanded the last mission to the Skylab Orbital Workshop.