For decades, the moon was seen as a barren, bone-dry world with no atmosphere, no liquid water, no magnetic shield, and extreme swings in temperature. The idea that it could ever support life seemed ...

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 ...

When we imagine finding alien life elsewhere in the solar system, we usually think of little green people (or more likely microbes) living on the surface of a rocky Earth-like world. Most of our ...