The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How ...

The cosmic object 3I/ATLAS has sparked intense interest since it entered our solar system. A key question among scientists is ...

A pair of space probes cruising the solar system may be able to pass through the tail of the mysterious Manhattan-sized comet ...

The European Space Agency's ExoMars Trace Gas Orbiter image of interstellar comet 3I/ATLAS as it passed close to Mars. (The European Space Agency) A mysterious interstellar comet — just the third such ...

MSU uncovered images of 3I/ATLAS from two months before it was detected as an interstellar object. These images indicate that the comet was active further from the sun than expected, indicating that ...

On Oct. 29, 3I/Atlas will reach its closest point to the sun. This will also be the fastest speed it achieves in our solar ...

The European Space Agency is making use of spacecraft designed for Mars and Jupiter missions to track interstellar comet 3I/ATLAS as it continues its journey through our solar system. First spotted in ...

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

What a coincidence! The mysterious interstellar object known as 3I/ATLAS has been streaking through the Solar System at exactly the same moment as the U.S. government has shut down. This means that ...

Two ESA spacecraft, Hera and Europa Clipper, are poised to fly through the long tail of interstellar comet 3I/ATLAS, a new ...

A mysterious interstellar comet — just the third such object ever confirmed to have entered our solar system — streaked past Mars last week. A spacecraft in orbit around the red planet had a front-row ...