The year 2000 (Y2K) problem, also known as the millennium bug, was a major source of computer concerns 25 years ago. It was expected to cause computers to fail and lead to critical disruptions in ...
Before Christa McAuliffe was an astronaut, she was a vibrant teacher in New England keen on showing her students how everyday people left extraordinary marks on U.S. history.
These lasers could eventually help power lunar bases and missions to Mars ... these components means it's challenging to send them to space. Related: 'It invites us to reconsider our notion ...