Last week NASA announced the "clearest sign of life that we've ever found on Mars". Amazing news, or a "crushing blow" for humanity?

The Fermi Paradox ponders an endlessly fascinating question: If so many worlds exist in the universe, why haven’t we detected any sign of extraterrestrial life? A possible reason, called the ...

One explanation for the Fermi Paradox is that aliens may be undetected because they slumber, quietly hidden away in the galaxy. But how and why might such Extraterrestrial Empires hibernate?

Where is everybody? Explore the iceberg of theories that attempt to answer why we haven’t made contact with extraterrestrial life. Fascinating, eerie, and thought-provoking!

Look up into the sky in late October as the 3I/ATLAS gets as close to the Sun as its trajectory permits. Harvard astronomer Avi Loeb, says he believes there is a 40% chance it is something other than ...