"Star Trek" is home to countless alien species, many of whom offer beloved characters. Some are not. We rank the 10 most ...

In late November 2025, astronomers captured an unprecedented cosmic signature: the first X-ray emissions ever detected from ...

According to a new scientific hypothesis, alien civilisations may only become detectable at the moment of their collapse.

As the year draws to a close, we take a look at some of the biggest science stories of the year, and why they matter.

Are aliens real? A Nature Astronomy study reveals 87% of experts believe life exists. Explore how 3I/ATLAS and AI are ...

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...

Scientists studying interstellar comet 3I/ATLAS say it may be older than the Sun and could have formed around a star that no ...

Interstellar object 3I/ATLAS, the third such visitor ever observed, is exhibiting unusual energy and chemical behavior as it ...

A Carnegie-led team of astronomers detected the strongest evidence yet of an atmosphere around a rocky planet beyond our ...

A strange world just 47 light-years from Earth is rewriting what scientists thought they knew about alien planets. Hidden ...

But 3I/ATLAS is no ordinary rock – it’s a comet from beyond the solar system which greeted the Earth on December 19. It’s ...

Astronomers continue to track the mysterious interstellar visitor Comet 3I/ATLAS as it speeds through the solar system, using ...