A mysterious visitor from another star system has become the focus of scientific fascination and public curiosity, but why ...

The international team of astronomers reports that all of the types of ice in the comet appear to be sublimating. This is the phase change where a solid turns into a gas, skipping the liquid phase.

Comet 3I/ATLAS is only the third known object to barrel into our neighborhood from interstellar space, and it is already shredding old assumptions about how comets form, move, and even what they are ...

What: A forward-looking SETI Live discussion examining the most significant space science missions, discoveries, and observational opportunities anticipated in 2026.

3I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar ...

Avi Loeb warns 3I/ATLAS's symmetrical jets defy comet norms, hinting at possible tech. Hubble data and expert debate fuel the ...

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 ...