Billions of years ago, another planet smashed into Earth. An event of this epicness could have created our Moon. It also ...

Scientists have discovered an 'alien' material inside a massive crater on Earth, sparking new questions about how life may ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.