NASA’s SPHEREx space telescope mission viewed 3I/ATLAS in December 2025, when researchers believed the brightening occurred due to a phenomenon associated with comets as they vent water, carbon ...

"I really wanna see the mass driver on the moon that is shooting AI satellites into deep space. Just going like 'shoom, shoom,' just one after the other." ...

The interstellar visitor, only the third such object to be discovered passing through our solar system, ignited controversial ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

With this new survey, astronomers have gained a peek inside a stage of exoplanet system formation they have yet to fully ...

Astronomers are tracking a visitor called 3I/ATLAS, the third confirmed interstellar object ever observed. The two previous instances were 1I/’Oumuamua in 2017 and 2I/Borisov in 2019. 3I/ATLAS is ...

Scientists confirmed that the interstellar comet 3I/ATLAS, which passed closest to Earth in December 2025, showed no detectable technosignatures strong enough to suggest it is an alien spacecraft.

A team of astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spaceship. The comet was confirmed in July 2025 as the third known object to enter our solar ...

Forbes contributors publish independent expert analyses and insights. Adam Frank is an astrophysicist exploring our place in the Cosmos. As a practicing astrophysicist and science communicator I see ...

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown. When you purchase through links on our site, we may earn an affiliate ...