The Hubble Space Telescope has been used to study 25 hot Jupiters. It has helped to answer "questions important to our ...

Tiny life forms adrift in alien skies might one day expose themselves through the faintest play of light. A new study ...

In 1978, Ride and five other women became the first group of female astronauts in the U.S. A new book by a longtime curator of spaceflight artifacts explores the nearly five-decade history of women in ...