Astronomers analyzing the interstellar object known as 3I/ATLAS say new trajectory and composition data point to an origin ...

A comet from another star system is sweeping through our cosmic backyard and, for the first time, astronomers have picked up ...

Interstellar object 3I/ATLAS is confirmed as a natural comet from beyond our solar system, posing no threat to Earth despite ...

New images of interstellar object 3I/ATLAS debunk 'cloaking' myths. Astronomers reveal a thinning coma as the visitor heads ...

I/ATLAS, the interstellar object discovered in 2025, reveals the estimated population, composition, and distribution of ...

NBC News' Gadi Schwartz reports on "3I/ATLAS," mysterious outer space object that is thought to be billions of years old, ...

New observations of 3I/ATLAS provide real data that scientists are using to evaluate asteroid behavior ahead of Apophis’ 2029 ...

Astronomer Avi Loeb argued that other objects like interstellar visitor 3I/ATLAS could be useful for reaching out to aliens, if they exist.

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

Space agencies around the globe have launched an unprecedented wave of planetary defense exercises, all centered on a mysterious interstellar visitor that refuses to behave like anything scientists ...

In the dense, glittering heart of our galaxy, a cosmic drama is playing out that puts our own quiet solar system to shame.

Scientists studying the interstellar object ‘Oumuamua have proposed that it may be a fragment from a Pluto-like planet beyond our solar system. Researchers from Arizona State University's School of ...