Some of the most massive and influential stars in the universe are OB stars. These blue giants, many times more massive than ...

Bothell, Wash.-based Portal Space Systems shows off the lab where its solar thermal propulsion system will be developed.

This is the conclusion of a team of researchers from Keele University, England, who calculated the rate of supernova explosions in the vicinity of our solar system. Supernovae occur when ...

At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova explosions, a new study suggests. Researchers at Keele University say ...

From two to three million years ago, we think that a supernova happened nearby." When Nojiri and colleagues simulated what that supernova was like, they found that it hammered the Earth with ...