In late 2025 a mysterious comet flew between the orbits of Earth and Mars and reached a speed of more than 150,000 miles per ...

Astronomers first spotted comet 3I/Atlas in data collected by the Asteroid Terrestrial-impact Last Alert System (ATLAS) in ...

Learn about the latest image of comet 3I/ATLAS, captured by a European Space Agency spacecraft that's on its way to Jupiter.

Before we say goodbye to our interstellar visitor, another close encounter is on its way. This one could be course-altering.

Check your weather forecast for clear skies, so you don't miss the spectacular astronomical events occurring throughout the ...

The solar system was hosting the third interstellar visitor, 3I/ATLAS, and observing its movement through space. Experts were yet to confirm where the interstellar comet arrived from, and the ...

December is an exciting month for those who like to look up, with a comet, a meteor shower, and a conjunction between the moon and Jupiter all featuring over the coming weeks. First up, for those with ...

The night sky promises Seattle an array of celestial wonders this year, one of which is a six-planet parade Saturday. It’s hard to articulate what exactly it is about the night sky that we find so ...