Our solar system’s third discovered interstellar visitor, comet 3I/Atlas, will dip into the glare of the Sun this week, leaving the detective work on this object to spacecraft far from Earth.

Interstellar comet 3I/ATLAS contains exceptionally high levels of methanol, suggesting it formed under conditions very different from those that shaped most comets in our solar system. ALMA also ...

Add Yahoo as a preferred source to see more of our stories on Google. Comet 3I/ATLAS, the third interstellar object ever detected by astronomers, will make its closest approach to Earth overnight ...

Add Yahoo as a preferred source to see more of our stories on Google. Interstellar comet 3I/ATLAS streaks across the sky with a blue plasma tail, photographed from June Lake, California, on December ...

An interstellar comet first spotted passing through our solar system in July is beginning its departure from our corner of the universe — but first it will fly by Earth, and scientists are capturing ...

Interstellar comet 3I/ATLAS has received its first two-dimensional chemical map: the Hobby-Eberly Telescope's VIRUS ...

Learn how ALMA observations revealed unusually high levels of methanol in interstellar comet 3I/ATLAS and what the molecule’s chemistry may reveal about how icy bodies form around other stars. Comet ...

Interstellar comet 3I/ATLAS is seen in this composite image captured on Nov. 6 by the Europa Ultraviolet Spectrograph instrument on NASA’s Europa Clipper spacecraft, from a distance of around 102 ...

The interstellar comet 3I/ATLAS was confirmed in July 2025 as the third known object to visit our solar system from interstellar space. Despite conspiracy theories, scientists say 3I/ATLAS shows all ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

This striking image from the science camera on ESA's Jupiter Icy Moons Explorer (Juice) shows interstellar comet 3I/ATLAS spewing dust and gas. The tiny nucleus of the comet (not visible) is ...