In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

Discover how space affects human health, from microgravity and cosmic radiation to psychological isolation, and what it means ...

Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...

Aliens may not be green after all. New research suggests entire planets could appear purple, changing how scientists detect ...

TOI-4616 b is an Earth-sized exoplanet orbiting an M-dwarf that offers a strong benchmark for studying atmospheric loss and ...

In March 2026, SETI Institute researchers contributed to a wide range of conversations about our solar system and the search ...

When the scientists paired two male octopuses in the same setup, the males interacted by touching arms, but they never ...

Alien, a startup looking to build trust infrastructure for the internet as the era of artificial intelligence agents changes ...

Finding life beyond our solar system goes beyond measuring an exoplanet's size, as rocky, Earth-sized worlds might not have ...

The new science fiction film adaptation leans heavily on real science done by the National Aeronautics and Space ...

In 'Project Hail Mary,' a human and an alien figure out how to cooperate across space. In real life, we can't see that fellow ...