From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

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Aliens might be living among us, Harvard academics are suggesting, perhaps residing in an advanced technological civilization deep underground or, maybe, in a base inside the moon. That’s right — a ...

The question whether we are alone in the universe is a profound one. As it stands, there’s only a single example of life as we know it: it’s right here on planet Earth. But, how prevalent is life? In ...

Smile: you might be some alien‘s favourite character on the reality TV show called Earth. A new scientific report suggests that there are 29 planets in our cosmic neighbourhood where alien life could ...

Scientists had a mixed response to the announcement of biosignatures spotted on an alien exoplanet. A team of astronomers announced on April 16, 2025, that in the process of studying a planet around ...

Any time NASA notices something unusual traveling across the galaxy, we collectively perk up and give it our full attention. Speculation is rampant that alien life is coming to visit us here on Earth ...

A Harvard University astrophysicist claims biological creatures would not be able to survive the journey to Earth, which puts the kibosh on any reports on alien sightings in our skies. Avi Loeb says ...

It's the oldest question on Earth. Where did we come from? Some people may thank a creator from above, but what if the hand that created humanity wasn't divine? What if aliens brought life to Earth?

Loading external pages may require significantly more data usage than loading CBC Lite story pages. In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained ...