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

A massive comet known as 3I/ATLAS that was first discovered zooming across the solar system over the summer showed signs of ...

Interstellar comet 3I/ATLAS on Wednesday reached its closest point to the Sun, a point known as perihelion. Although this ...

Spacecraft have revealed that the comet—which one scientist suggests could be an alien spacecraft—is now "distinctly bluer ...

I/ATLAS is the third interstellar object ever discovered in our solar system. Telescope observations suggest it is a roughly 7-mile-wide (11 kilometers) comet zooming at more than 130,000 mph (210,000 ...

After conjunction and perihelion, the comet has come out from behind the solar glare and the first image shared.

The interstellar comet 3I/ATLAS is currently making its way through our solar system at a staggering speed of 130,000 mph.

When you buy through links on our articles, Future and its syndication partners may earn a commission. The Gemini South Observatory in Chile captured this photo of interstellar comet 3I/ATLAS in July.

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a very different structure than comets in the solar system. Hydroxyl compounds ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS, were captured by two of the the European Space Agency's Mars orbiters -- ...

"It tells us that the ingredients for life's chemistry are not unique to our own." A rocky visitor from beyond our solar system is leaking water like a "fire hose running at full blast," a new study ...