An exosyzygy – an alignment of three celestial objects around another star – is predicted to happen later this year, but it ...

It is unclear whether a [3I/ATLAS] would transmit radio signals … such signals would take tens of thousands of years to cross ...

Fresh orbital images and new geological analysis have revealed eight mysterious caves on Mars that appear unusually well suited to protect traces of life. Together, these caverns, portals and ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Researchers have confirmed the mass of a free-floating planet thanks to a lucky convergence of ground- and space-based ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

The ‘Pluribus’ finale shows the terrifying reality of a perfectly unified world with a single scene, starring Kusimayu ...

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

James Cameron criticises Alien 3, calling its decision to kill off major characters the “stupidest” move in the Alien ...

The latest instalment saw Ncuti Gatwa return as the Fifteenth Doctor alongside companion Varada Sethu for adventures in 1950s ...

Is 3I/ATLAS an alien probe? Breakthrough Listen uses the Green Bank Telescope to search for technosignatures as the ...

Samus Aran, the science fiction protagonist in the Metroid series, is arguably Nintendo’s most mysterious character. She ...