During the past few years, we have witnessed a bumper crop of bright naked-eye comets, beckoning us to set up a camera and record their beauty to share with friends and family. However, the next great ...

Comets are small, roundish bodies made of dust grains mixed with ice. Most travel along elliptical orbits that occasionally ...

Protoplanetary disk. Figure from a computer simulation visualizing the formation of planets (https://svs.gsfc.nasa.gov/12278 ). Photo: NASA/JPL-Caltech. August 22, 2024, Mountain View, CA - An ...

When interstellar comet 3I/ATLAS swept through the inner solar system in early 2026, four spacecraft turned to watch. What ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A green comet continues to shine brightly after sunset for ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Comet Lemmon (C/2025 A6) as imaged using a Seestar S30 smart ...

The first reports of comet 3I/ATLAS were made on July 1, 2025, by the ATLAS (Asteroid Terrestrial-impact Last Alert System) telescope in Chile. This comet caught the world's attention since it was the ...

Historically, the brightest comets often become known as "Great Comets." The Great Comet of 1965— C/1965 S1 (Ikeya-Seki) —was the brightest comet of the 20th century. Discovered just one month before ...

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 ...

Comet C/2025 R3 (PanSTARRS) continues to brighten ahead of its closest approach to Earth on April 26, and you can watch it fly between the sun and Earth through the eyes of an orbiting spacecraft this ...