A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

A fan-favorite Game of Thrones star has officially joined Season 2 of Ridley Scott's Alien: Earth as filming kicks off.

A pair of ‘super-puff planets’ lighter than a shaving foam or cotton candy have been discovered, researchers told Metro.

A microscopic, nearly indestructible creature known as the tardigrade has survived the vacuum of space, sub-zero cold, and ...

New movies and TV shows to watch on Netflix, HBO Max, and more, including Project Hail Mary and The Five Star Weekend.

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From Metroid Prime to Mass Effect 2, these sci-fi games are the very definition of perfection, offering experiences unlike ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

For your extraterrestrial viewing needs, Stacker ranked the top 30 alien movies, according to their IMDb user rating.

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Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks are enormous.