An interstellar comet that passed through the Solar System last year may be up to 12 billion years old – far older than the sun. Scientists used the NASA/ESA/CSA James Webb Space Telescope to examine ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...

A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...

It was initially thought to have formed between three and 10 billion years ago, but researchers have now found that it could be even older, originating from an ancient planetary system nearly 12 ...

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object was ...

Comets have played an interesting role in the history of astronomy. Since antiquity, many cultures saw them as omens or spirits, portending good or bad news for kings, queens and emperors. Over the ...

In July 2025, astronomers detected 3I/ATLAS, a rare interstellar comet, prompting SETI researchers to scan it for alien signals using advanced radio telescopes.

JWST detected rising methane emissions from interstellar comet 3I/ATLAS, exposing ancient interior ice and offering new ...

SETI researchers found no alien signals on interstellar object 3I/ATLAS, but the study refines future searches and expands understanding of interstellar visitors.

The Trump administration has tapped a Harvard professor with controversial theories about aliens to lead a team of scientists in studying UFOs.