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

The images offer the closest view yet of comet 3I/ATLAS, famous for being only the third known interstellar object to pass ...

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

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

Though it won't become any brighter, Comet SWAN will reach its closest point to Earth on Oct. 20, coming within 24 million ...

See stunning photos of Comet C/2025 A6 (Lemmon) as it brightens ahead of a possible naked eye appearance in mid-October.

The comets can be seen from the Northern Hemisphere as their orbits take them through our cosmic backyard. Two such ...

Two rare bright comets are visiting our neighborhood this month, making for once-in-a-lifetime viewing. The comets, C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are already showing off their green tails ...

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

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the ...

The European Space Agency's two Mars orbiters take their shot at getting pictures of the exotic interstellar comet 3I/ATLAS.

This newly discovered comet could soon glow bright enough for the naked eye as it sweeps through October's morning and ...