Astronomers have spotted an unexpected chemical heavyweight drifting through deep space - and it may offer new clues about how life gets started. Detected near the center of the Milky Way, the ...

3I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar ...

An interstellar comet first spotted passing through our solar system in July is beginning its departure from our corner of the universe — but first it will fly by Earth, and scientists are capturing ...

Californians can now glimpse a unique comet, dubbed 3I/ATLAS, that has captivated astronomers worldwide and sparked speculation of aliens. Anyone with a backyard telescope should be able to view the ...

Since its discovery, some people have speculated that interstellar visitor 3I/ATLAS could be alien technology. Harvard astrophysicist Avi Loeb points to its unusual trajectory and composition as ...

Scientists used the Gemini North telescope in Hawaii to obtain images of the third-ever detected interstellar object, Comet 3I/ATLAS, on Nov. 26, 2025. Credit: NSF NOIRLab In the spirit of the season, ...

K2 Space has quadrupled its valuation in less than a year to $3 billion thanks to its cheaper satellites designed for communications and defense. When Redpoint Ventures managing director Elliot Geidt ...

New images captured by the European Space Agency (ESA) of the interstellar comet 3I/ATLAS has "surprised" the agency's Jupiter Icy Moons Explorer (JUICE) team as they saw the "very clearly visible ...

NASA's Hubble Space Telescope and an ESA orbiter bound for Jupiter both recently glimpsed 3I/ATLAS. The comet will make its closest approach to Earth in December but poses no threat and is not visible ...

The Hubble Space Telescope and the Jupiter Icy Moons Explorer have captured fresh images of an interstellar comet as the object nears its closest approach to Earth later this month. Comet 3I/ATLAS has ...