As you read, you are flying through space at hundreds of thousands of miles per hour. Not only is our planet hurtling around the Sun at incredible speeds, our entire solar system is thought to be ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously unknown world may be lurking in the outer reaches of the solar system. The ...

"If our solar system is indeed moving this fast, we need to question fundamental assumptions about the large-scale structure of the universe." When you purchase through links on our site, we may earn ...