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

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...

I/ATLAS's chemical composition, upcoming invisibility, and trajectory suggest to experts that it is alien technology, but ...

Since its arrival this summer, scientists have been racing to understand as much as possible about 3I/ATLAS, the third ...

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 ...

The Earth will soon finally learn the truth about 3I/ATLAS after months of mothership rumors and speculation about advanced ...

3I/ATLAS is named for its status as one of three interstellar objects ever discovered in our cosmic neighborhood, as well as ...

Water is the universal yardstick of comet science, the baseline for measuring how sunlight drives a comet's activity and ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously ...

Harvard professor Avi Loeb discusses the first new images of 3I/ATLAS after it passed Mars. Early photos from international ...

"Though our Mars orbiters continue to make impressive contributions to Mars science, it's always extra exciting to see them ...