I/ATLAS stands apart from other interstellar objects because of its size as well as pace, and will soon disappear from Earth's view.

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

I nterstellar comet 3I/ATLAS is about to vanish from view. Earth and this interstellar interloper will be on opposite sides ...

As Universe Today reports, scientists have worked back the trajectory of the comet, known as 3I/ATLAS, back to what they ...

Only the third interstellar object to pass through our solar system, comet 3I/ATLAS is a rarity worth paying attention to, ...

Astronomers say that mysterious interstellar visitors like 'Oumuamua and 3I/ATLAS are the most common large bodies in the Milky Way — and our best chance to study other planetary systems.

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...

While we haven't seen an interstellar comet being struck by a coronal mass ejection before, we have seen it happen to others. This happened on April 20, 2007, when NASA's STEREO A spacecraft saw Comet ...

COLUMBUS, Ohio — In a cosmic first for this decade, astronomers have identified a mysterious comet from another galaxy — marking only the third time in history that an interstellar object has entered ...

A newly discovered interstellar comet is puzzling astronomers as it speeds through our solar system with a chemical profile unlike anything seen before. Officially named 3I/ATLAS, it's only the third ...

The month is packed with skywatching highlights—including two galaxies visible to the naked eye and a rare glimpse of the ...