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 ...

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 green comets visible in the night sky are now at their minimum distance from Earth, so they should be at their brightest in the night sky. Comet Lemmon (also called C/2025 A6) and Comet SWAN ...

A "devil" comet's water is strikingly similar to the water on Earth, researchers have discovered. The finding supports the idea that water was brought to our planet through comet impacts, helping set ...

This coming autumn brings a thrilling lineup of comets visible from both hemispheres, framed as a “parade of comets” for skywatchers to enjoy—made all the more compelling through coordinated ...

After the excitement of three visible comets in 2025, another may put on a show in late April 2026. However, although the comet, known as C/2025 R3 (PanSTARRS), could become bright enough to be seen ...

Highlights from a cometary trio that captured our imaginations. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. 2025 has seen stargazers look on ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." When you purchase through links on our site, we may earn an affiliate commission.

Nov. 20 (UPI) --NASA released images of the interstellar comet 3I/ATLAS flying past Mars and, based on the agency's observations, scientists expressed doubt that it is an alien spaceship. Space ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that won’t return until the next millennium. Comet C/2025 A6 (Lemmon), captured ...

An animated simulation of how the rover Curiosity might see the fly-by of the comet Siding Spring. On Sunday, Oct. 19, UA scientists are going to try to use their robotic cameras in orbit around Mars ...