Former NASA astronaut Bruce McCandless, the first person to fly untethered in space, died this week at 80 years old, the agency said Friday.
McCandless, who died Thursday, became the first astronaut to fly in space without being harnessed to a space vessel on Feb. 7, 1984, while on a mission aboard the space shuttle Challenger. Other astronauts on the mission used a 70mm camera to capture the moment in a now-iconic photograph, NASA said in a release.
A 10,000 year-old tooth in remarkable condition from an ancient Pacific mastodon, a large mammal that...
The universe is a strange place — filled with exploding stars, ancient galaxies, and unseen worlds....
Netia McCray recalls how excited she was to join the federal advisory committee on long COVID...
Pine trees near Lake Tahoe are being poisoned in what authorities believe are a series of...
