This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

Loeb's team will report to a new White House panel focused on UFOs, now often referred to as unidentified anomalous phenomena ...

Astronomer Avi Loeb gives his thoughts on the prospect of finding signs of intelligent life beyond our Solar System.

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

Along with other recent discoveries, the new finding from Perseverance boosts the case that Mars once hosted conditions that ...

Exceptionally preserved fossils from China reveal that bryozoans were already thriving during the Cambrian explosion.