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.

2025 marked the first official year of our newest citizen science effort, Satellite Surveillance, which delivered major ...

3I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star. Tune in ...

The other two known interstellar comets did not offer such an opportunity.

Interstellar comet 3I/ATLAS is tearing across the inner solar system at roughly 130,000 miles per hour, a speed that turns ...