I/ATLAS's chemical composition, upcoming invisibility, and trajectory suggest to experts that it is alien technology, but ...

Harvard astronomer Avi Loeb currently says there is a 30-40 percent chance the object is not natural in origin.

There has been a lot of talk among people who study and follow such things about whether or not interstellar comet 3I/ATLAS is an alien spacecraft. Most ...

From Martian rocks that may hold traces of past life, to fragile asteroids that explode in Earth’s atmosphere, to bold ideas ...

Unistellar marks its 10th anniversary with a call to stargazers: observe 10 comets this autumn in partnership with the SETI ...

In early July 2025, a telescope system designed to spot potential threats to Earth made a surprising discovery. The Asteroid Terrestrial-impact Last Alert System, better known as ATLAS, detected a ...

Complex, intelligent life in the galaxy appears vanishingly rare, with the nearest possible civilization perhaps 33,000 light ...

That, unfortunately, just ain’t happening. Though the Search for Extraterrestrial Intelligence (SETI) began more than 60 years ago, there was never sufficient funding or telescope time available to ...

In this excerpt from his new book, John Gertz argues it’s time to ditch SETI’s old dogmas and rethink how we prepare for first contact.

For nearly 40 years, the SETI Institute, a nonprofit research organization in Mountain View, has been searching for intelligent life forms beyond Earth. A philanthropic gift of $200 million, announced ...

In 1995, the computer scientist David Gedye had an idea that could only originate at a cocktail party. What if the world’s personal computers were linked together on the internet to create a virtual ...

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