Two unusual cosmic events happened in late 2025, fascinating people across the world. A rare interstellar comet called ...

Europa Clipper has a rare opportunity to sample an interstellar object’s tail.” The remark by Samuel Grant and Geraint Jones captures both the scientific rarity and the urgency surrounding comet ...

A new study states that as the interstellar comet makes its way out of the solar system, its encounter with Jupiter will ...

Key Findings The tail shouldn't exist at that distance. The mass loss exceeds what the object can afford to lose. What we're ...

When a faint green smudge appeared in images from a backyard telescope in Aguadilla, Puerto Rico, on Nov. 22, 2025, astronomers did not expect it to upend basic assumptions about how comets work. Yet ...

It was soon deduced that this is an interstellar comet, meaning it has come from another solar system. It’s only the third ...

NASA will host a live event at 3 p.m., Wednesday, November 19, to share imagery of the interstellar comet 3I/ATLAS.

NASA maintains 3I/ATLAS is simply a comet. Still, Loeb commented that if spacecraft such as Juno detect unfamiliar hardware orbiting Jupiter after ATLAS passes, it would force humanity to rethink its ...

Discover NASA's latest images of the extraordinary interstellar comet 3I/ATLAS, the third comet from another star entering ...

NASA released new images of 3I/ATLAS, the third comet ever to be discovered in Earth's cosmic neighborhood originating from ...

If we find technological satellites of Jupiter that we did not send, it would imply that Jupiter is of interest to an ...