Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

The researchers who scan the skies for radio signals from extraterrestrials are now rethinking their approach.

When it comes to the space sciences, nothing is quite as exciting as the search for alien life, and NASA thinks it has a good ...

Donald Trump has ordered the release of files related to aliens, UAP, and UFOs. If previous disclosures are any indication, get ready for a letdown.

A new study shows that stars with low magnetic activity are likely to support exoplanetary systems, making the hunt for these ...

Comets are often treated as leftovers, but sometimes the leftovers become the primary focus. That is the case with 3I/ATLAS, only the third known interstellar object seen crossing the solar system, ...

America was winning the race to find Martian life. Then China jumped in. In July 2024, NASA’s Perseverance rover came across a peculiar rocky outcrop on Mars covered in strange spots. On Earth, these ...

Are we hitching our wagon to the wrong star? Harvard scientist Avi Loeb has slammed a seemingly far-fetched proposal to intercept interstellar comet 3I/ATLAS with a spacecraft, claiming that we’re ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

For nearly five decades, Steven Spielberg has helped define what alien stories mean to movie audiences. Sometimes they arrive as cosmic miracles. Sometimes as existential threats. Sometimes as ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what ...