Being able to spot the Earth, let alone any signs of life on our planet, would require an enormous telescope from 66 million ...

Aliens exist - they just haven't visited Earth, NASA veteran Dr Gentry Lee has claimed.

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

Humans could have come from Mars, scientists have said. A study by Johns Hopkins University has found that alien microbes ...

This is the definitive ranking of the best alien invasion movies of all time. In between those bookends, Lifeforce is one of the wildest, most unique, most incredible science fiction movies almost ...

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant life might be present there. And then we can search for changes in a planet’s ...

Scientists identify exoplanet candidate HD 137010 b, a possible Earth-size world orbiting a Sun-like star 146 light-years away ...

War Machine’s shocking alien invasion ending has sparked questions about a sequel. Here’s the latest on War Machine 2, Netflix’s renewal status, creator comments, and what the story could explore next ...

Could alien signals have already reached Earth undetected? - If advanced alien civilisations exist and have contacted Earth, ...

Now that debates have cooled down on the series, it's time to dive back into the impressive experience.

In last week’s The Universe column, I fielded a reader’s question about galaxy collisions in an expanding universe. The answer deals with vast distances, inscrutable forces and the ultimate fate of ...