The inner solar system is a lot calmer than it was 4 billion years ago, during what’s known as the heavy bombardment period. Over the course of that violent stretch, which lasted about 500 million ...

December is an exciting month for those who like to look up, with a comet, a meteor shower, and a conjunction between the ...

"Spectacular" and "impressive" were some of the words used to describe a fireball that flashed across the night sky yesterday ...

The bright lights are believed to have been caused by the Leonid meteor shower, which takes place every year in November, ...