The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system. Despite some ...

ESA’s Mars orbiters captured images of the interstellar comet 3I/ATLAS as it passed close to Mars, revealing its bright, hazy ...

3I/ATLAS is the third confirmed interstellar object to whoosh through our solar system, after 1I/ʻOumuamua (discovered in ...

What makes 3I/ATLAS especially intriguing is that the comet might be three billion years older than our entire Solar System.

The interstellar object 3I/ATLAS has been something of a mystery ever since it graced our solar system. From all outward ...

Conditions are near-perfect to spot this celestial visitor, which won't appear again in our night sky for another millennium.

Discover Colorado's October stargazing gems with the Orionid meteor shower peaking October 20-21 and twin comets Lemmon and ...

Comet C/2025 A6 Lemmon is getting brighter and whether you have a telescope, binoculars or just your eyes, here’s how you can ...

A new La Niña has arrived, according to forecasters at the Climate Prediction Center. Sea-surface temperatures near the West Coast of South America and along the equatorial regions are now cooler than ...

ESA’s ExoMars Trace Gas Orbiter captured rare close-up images of comet 3I/ATLAS passing Mars at 130,000 mph — the faint interstellar visitor showed a gas coma but no tail.

ESA’s Mars orbiters have observed comet 3I/ATLAS, only the third interstellar comet ever discovered. The faint, distant ...

The European Space Agency (ESA) shared more data on the 3I/ATLAS interstellar comet after pointing to Mars orbiters at it.