Astronomers have identified Comet 3I/ATLAS as an interstellar object, making it only the third confirmed visitor from outside ...

Comet G3 is on its first voyage into the inner solar system, meaning it’s packed with volatile materials that have never been exposed to the Sun’s warmth before. This makes its behavior somewhat ...

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the ...

A European Space Agency spacecraft orbiting Mars caught a glimpse of interstellar comet 3I/ATLAS last week. - ESA / D. Ducros illustration As a visitor from another solar system made its closest ...

A newly-discovered comet might light up the night sky in the coming weeks, possibly shining even brighter than the planet Venus. The comet, named Comet ATLAS (C/2024 G3), is making a beeline for the ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another star. NASA and the European Space Agency released the latest photos Thursday.

Astronomers are rolling out a welcome mat for a newly identified visitor from beyond our solar system. The object — thought to be a comet — is only the third-ever confirmed interstellar visitor to ...

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. The comet known as 3I/Atlas will hurtle within 18 million miles ...

This newly discovered comet could soon glow bright enough for the naked eye as it sweeps through October's morning and ...

There’s always another comet. Last year there was much ballyhoo over the so-called “devil comet,” some will-it-won’t-it drama of Tsunchinshan-ATLAS, and the sudden discovery (and quick demise) of a ...

A photographer snapped a striking shot of Comet Lemmon streaking over Scotland as the night sky unexpectedly filled up with a ...