For decades, the search for life beyond Earth has focused on distant exoplanets and the rusty plains of Mars. Now, a small ...

The faraway moon has 'a slushy high-pressure ice layer' similar to the melting Arctic that could hide extraterrestrial life.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

Europa has a vast, saltwater ocean beneath its icy shell, with more than twice the amount of water in all of Earth’s oceans ...

Scientists have long believed Saturn’s moon Titan hid a massive underground ocean, but new research suggests something even ...

Because Titan is tidally locked, the same side of the moon faces Saturn all the time, just like our own moon and Earth.

In 1957, a 300-foot craft landed quietly in Virginia. Out stepped a man in a metallic jumpsuit who simply said, “I need to see the president.” His name? Valiant Thor. He claimed to be from Venus—and ...

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may look more like slush.

Scientists are to send a spacecraft to hunt for aliens potentially hiding in our solar system. The European Space Agency (ESA) has announced a mission to Saturn's moon Enceladus, as it has all the ...