English science fiction writer Arthur C. Clarke once said, "Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying." It's a line that has motivated ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow the search for potentially habitable planets beyond Earth. When you purchase ...

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden biosignatures, limitations in detection technology, and assumptions about ...

English science fiction writer Arthur C. Clarke once said, “Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” It’s a line that has motivated ...

(RNS) — Roughly a third of the way into Steven Spielberg’s new blockbuster film “Disclosure Day,” which focuses on the theoretical release of evidence documenting the existence of alien life, a ...

This video starts with a simple question — does life really need DNA? — and then turns it into something much bigger. From RNA worlds and TNA protocells to exotic XNAs, methane-compatible chemistries, ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of an exoplanet in an alien star system. New research suggests that radio emissions from intelligent aliens may be ...

Scientists say moons around rogue planets wandering through the galaxy could remain warm enough for life thanks to tidal heating and hydrogen-rich atmospheres. These dark, starless worlds may have had ...

A hefty "super Earth" lurking in one of the closest star systems to our planet may be much better suited to supporting extraterrestrial life than scientists initially thought, a new study suggests.

When you get cowboys and aliens in the same movie, you’re also going to have horses — and ended up being the root of an alarming incident for Olivia Wilde on the set of 2011 sci-fi flick “Cowboys & ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A NASA astronaut preparing for a grueling eight-month stint in orbit ...

Olivia Wilde has revealed that “real-life hero” Walton Goggins saved her from a gruesome death on the set of Jon Favreau’s 2011 sci-fi Western film, Cowboys and Aliens. Based on Scott Mitchell ...