Comet 10P/Tempel 2 is now visible in the south as soon as it gets dark from anywhere in the Northern Hemisphere, but only ...

Learn about an object in space that has emerged as a dark comet, displaying a much fainter glow than most comets.

Scientists began suspecting the object when they saw unanticipated changes in its orbit.

NASA has highlighted the return of comet 10P/Tempel, a periodic comet that is once again moving through the inner solar ...

No two comets are exactly alike. Of course, they can appear similar. Two decently bright comets that share a superficial resemblance are gracing our skies right now, in fact: C/2025 A6 (Lemmon) and ...

In late 2025 a mysterious comet flew between the orbits of Earth and Mars and reached a speed of more than 150,000 miles per hour during its closest approach to the sun. The rare interstellar guest to ...

Researchers say further observation of Jupiter-family dark comets, aided by NASA's upcoming NEO Surveyor, may reveal more ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

A newly discovered comet, C/2025 R3 (PanSTARRS), could be the brightest of its kind visible from Earth in 2026. The comet will make its closest approach to the sun on April 19 and its closest approach ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A newly brightening comet is now visible in the predawn sky ...