Alberta citizen initiative application fee goes from $500 to $25,000 James Cameron rejects '51st state' talk as he brings ...

Our Solar System contains tens of thousands of potentially dangerous asteroids that could wipe out an entire city, or worse.

Breaking news headlines, stories and live updates on current affairs from across the globe. Complete coverage on the latest top stories, business, sports, entertainment, and world politics news ...

Asteroid Bennu was expected to be relatively smooth and easy to sample. When OSIRIS-REx arrived, it found a surface covered ...

A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

On Dec. 13, 2012, a Chinese spacecraft flew by the asteroid Toutatis. [‘On This Day in Space’ Video Series on Space.com] ...