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

The interstellar comet 3I/ATLAS may be out of view of Earth, but orbiters on Mars were able to recently get a look at it.

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

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

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 ...

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

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

Observing 3I/ATLAS in this active phase will give some of the clearest insights yet into the mystery of interstellar comets.

Researchers have discovered that interstellar comet 3I/ATLAS has been shedding water, providing insights into the building ...

NASA’s Swift telescope spotted signs of water on interstellar comet 3I/ATLAS - proof that water flows far beyond our solar ...

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