Last year, a giant space rock hit headlines after NASA revealed there was a small chance it could smash into Earth. Once dubbed the 'city-killer' asteroid for its potential to wipe out a major city, ...

Dozens of people across Wyoming, Colorado and Utah saw a colorful fireball streak through the sky Thursday night. Experts say it likely faded over ...

The infrared space telescope also detected water vapor, carbon dioxide and organic compounds streaming from the departing ...

A doctoral student recreated a tiny piece of the universe in a bottle to investigate the chemistry that led to life on Earth.