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 ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS ...

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

The spacecraft in question are NASA’s Europa Clipper, going to the eponymous icy moon of Jupiter, and the European Space ...

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest ...

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

Recently discovered interstellar comet 3I/ATLAS have been captured using the European Southern Observatory's Very Large ...

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

For millions of years, a frozen traveler drifted in silence through the stars, carrying secrets from another world. This ...

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

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