Astrobiologists propose that alien civilizations need accessible coal deposits to industrialize exoplanets and become detectable from Earth.

It's not nearly as easy as one might think. The post If Scientists Ever Find Strong Evidence of Alien Life, Communicating It ...

What if humanity could no longer live on Earth? Perhaps a catastrophic event forced us to find a new home among the stars.

For decades, the search for life beyond Earth has focused on distant exoplanets and the rusty plains of Mars. Now, a small icy world in orbit around Saturn is emerging as one of the most compelling ...

In one of the most baffling discoveries of the last decade, scientists have found a clue in a cave to how life might survive in deep space without light.

Are we alone in the universe? Are we alone in the universe? The search for exoplanets—planets orbiting stars beyond our solar system—is helping scientists get closer to an answer. From hot Jupiters to ...