Grissom's Liberty Bell 7 sat on the ocean floor for 38 years before being recovered in 1999. NASA Seven years after it was fished from the bottom of the Atlantic Ocean, Gus Grissom’s Liberty ...

Gus Grissom, in cufflinks and crew cut, is intent on a gimbaled training device designed to demonstrate how astronauts would regain attitude control should their spacecraft tumble. He’s ...