Astronomers are watching a new comet pass through our solar system with great interest. Based on its glow, the 33-billion-ton ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

An alien comet passing through our solar system made its closest approach to Mars recently, and two European robotic ...

The comets A6 (Lemmon) and R2 (SWAN) are visitors from the chilly fringes of our solar system, and could even be visible at ...

Observations made by NASA's Neil Gehrels Swift Space Observatory have revealed that the interstellar object 3I/ATLAS ...

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

Comet Lemmon, also designated C/2025 A6, was discovered in January by a telescope scouring the night sky for near-Earth ...

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

Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...

Is interstellar object 3I/ATLAS an alien probe or a natural comet? Explore the compelling scientific evidence, from its tail to its chemical makeup, that debunks the myths.

We're just weeks away from this interstellar visitor reaching its brightest in Earth's night skies. Will we see it?

When news first broke that a foreign body, nicknamed Atlas, had drifted into our solar system from the deep unknown, it ...