Interstellar comet 3I/ATLAS is now within 300 million km of Earth. Discover why NASA and ESA are tracking this ancient ...

Comet C/2025 A6 (Lemmon) is currently cruising through the night sky, positioned within the constellation Ophiuchus, ...

NASA is providing more images and information about the interstellar object that's passing through our solar system right now ...

When comet 3I/ATLAS was first spotted streaking across the sky in July 2025, it looked like another fleeting astronomical ...

I/ATLAS is a comet, not an alien, according to many experts, though some celebrities, and even one Harvard professor, have ...

It is a rare event for the solar system to receive a visitor from the vast, lonely void of interstellar space, and even rarer ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

Astronomers have captured spectacular images of a comet, C/2025 K1 (ATLAS), breaking apart in three large pieces during its ...

On a typical Martian day, NASA’s MAVEN spacecraft studies Mars’ atmosphere to understand how the planet became so ...

The impacts that started on July 16, 1994 ended on July 22, 1994, were captured by NASA’s Galileo orbiter that was enroute to ...

WASHINGTON (Reuters) -Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is vaporized by stellar heat, trailed by a comet-like ...

Scientists suspect that comets may have delivered the organic ingredients necessary to cook up life on Earth, and new research shows how exoplanets could have received these special deliveries from ...