Simpson and Chen ran mathematical models looking at how differently sized Earth-like worlds would have affected the rest of ...

Scientists have reevaluated the catastrophic impact of the Chicxulub asteroid that struck 66 million years ago, revising the ...

The idea of cosmic threats to Earth almost sounds like the stuff of fiction. But while alien invasions may be far fetched, ...

Astronomers were left less than impressed when they uncovered the truth about an asteroid they'd been keeping an eye on. On ...