From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Harvard physicist Avi Loeb challenges NASA, suggesting the iron-rich composition of interstellar object 3I/ATLAS indicates ...

Harvard's Avi Loeb investigates whether the interstellar object 3I/ATLAS is leaking artificial propellants, suggesting that ...

I/ATLAS’s enigma continues as its closest approach to Earth is nigh ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

The controversial Harvard astronomer is one of the main sources of the "alien mothership" hypothesis. This is what he thinks, ...

Uri Geller alleges NASA is hiding alien remains tied to interstellar comet 3I/ATLAS, sparking debate amid scientific evidence that the object is a natural comet.

Avi Loeb says interstellar objects such as 3I/ATLAS could carry time capsules into deep space faster than spacecraft built with 1970s technology ...

Using JWST, scientists discovered PSR J2322-2650b — a carbon-rich, lemon-shaped exoplanet orbiting a pulsar — challenging ...

Hints of ancient microbes in Martian rocks and a revived theory about our cosmic ancestry are forcing scientists to rethink ...

A legendary signal from deep space, once dismissed by some as statistical noise, has just become even more mysterious.

In the vast, silent theatre of the cosmos, a rare visitor is preparing for its final bow before departing our solar system forever. The interstellar object known as 3I/ATLAS — the third confirmed ...