From Martian rats to mysterious women, alien hunters say the photos from the Mars rover prove there's life on the red planet. CNN's Ian Lee investigates. source

Join Professor Brian Cox in the search for extraterrestrial intelligence. We ask scientists from SETI how they are using radio telescopes to scan the skies for aliens. Produced by the Royal Society with thanks to the research teams involved in the Royal Society Summer Science Exhibition 2019 ...

If aliens are sending us signals, are we set up to detect them? Dan Riskin speaks with planetary scientists, radio astronomers, and computer scientists who explain how the search for ET has ramped up in the last few decades. But if they're successful, is there a way to predict what alien ...

How much of the galaxy have we actually searched for extraterrestrial life? Neil deGrasse Tyson explores just how little we've looked at with Jill Tarter, ... source

Astronomers have been scanning the skies for signals from other civilizations for more than half a century, yet no evidence for intelligent life in outer space has ... source

We have always wondered whether other intelligent life exists in this galaxy, but for the first time we have the technology to help answer that question. source

Are we alone in the Universe? It's one of the most difficult and important questions that humanity can ask. As Arthur C. Clarke noted, it's equally terrifying whether ... source

Though humans have long looked to the stars, the history of human interest in alien life is relatively recent. Here's a look back at how humans have throughout ... source