Scientists have found a hidden biosphere stretching miles beneath Earth’s surface and as deep as 6 miles below the seafloor.

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

The organic molecules could come from life or from ordinary chemistry — only samples returned to Earth can settle it.

A look at 10 of the greatest alien sci-fi movies, from Ridley Scott's Alien to Denis Villeneuve's Arrival, none by Steven ...

"First of all, we don't need that building to do that," Maher said. "That's in our hearts and minds. That already happened." ...

These wildly different films explore the wondrous, and sometimes terrifying possibilities of contacting extra-terrestrial ...

ON AN August evening in 1995 there was a worldwide broadcast of an 18 minute, grainy black and white film that caused a sensation. According to the report it had been kept secret by the US ...

It's an age-old debate in space circles: Should humanity's first city on another world be built on the moon, or on Mars? As recently as last year, SpaceX founder Elon Musk saw missions to the moon as ...

Mars presents one of the strangest sights in the solar system: a blue-tinted Sun setting against a red sky. This episode explains the physics behind this eerie phenomenon, from fine dust particles to ...

The MCU has had several cool aliens. The Skrulls, the Chitauri, the Abilisk, they all have cool designs and either sharp teeth or interesting powers. But the title of coolest MCU alien is the Flerkens ...

When it comes to DC Comics, there are an overwhelming number of aliens on Earth, including some of the most powerful heroes in comics. This has been true since the start, as the first actual superhero ...