Learn what makes Comet 3I/Atlas, the third interstellar object ever observed entering into our solar system, so significant for space research.

On October 24, 2025, astronomers using South Africa's MeerKAT radio telescope made a historic breakthrough: they detected the first-ever radio signal from an object originating outside our solar ...

A newly detected radio signal from 3I/Atlas matches the natural emissions of a comet, effectively ending the speculation that ...

I/ATLAS is a comet, not an alien, according to many experts, though some celebrities, and even one Harvard professor, have ...

The effort to monitor the comet, estimated to be the size of a city block, was spurred on by Harvard astrophysicist Avi Loeb, a vocal proponent of the theory that 3I/Atlas could have an ...

Astronomers are monitoring interstellar object 3I/ATLAS, which Harvard’s Avi Loeb suggests could share an “artificial connection” with comet C/2025 V1. A decisive radio detection from the MeerKAT ...

Comet 3I Atlas is currently ~186 million miles from Earth, which is twice the distance from the Earth to the sun. It is ...

NASA detected radio echoes from 3I/ATLAS which human beings wanted to understand what they mean. Thus, NASA then proceeded to ...

NASA is set to release high-resolution images of interstellar object 3I/ATLAS, taken by the Mars Reconnaissance Orbiter. These images, delayed due to a government shutdown, are expected to offer ...

A comet discovered last year — known as C/2023 A3 Tsuchinshan-ATLAS — is set to make a close approach to Earth in the coming days. The snowy dirtball is nearly 2 miles in diameter and its tail of dust ...

By Tom Hawking Published Nov 30, 2025 9:00 AM EST Tayfun Coskun/Anadolu via Get the Popular Science daily newsletter💡 ...