Comets

For over a century astronomers have speculated that comets could have delivered organic molecules necessary for life to Earth, but new modeling shows these molecules wouldn't have survived impact.

"Every one of these objects we study helps us understand a little more about how planets form around other stars."

A rare look at a centaur transforming into a comet with coma is providing a missing link in the evolution of small, icy solar system bodies.

Comet McNaught brightened dramatically during two outbursts around perihelion as it made a close approach to the sun.

A shot so spectacular it will leave other astrophotographers green with envy.

Astronomers discovered that a near-Earth asteroid is actually a comet that could help scientists identify more hidden comets and improve planetary defense.

Observations of the fast-moving interstellar comet with the Very Large Telescope in Chile support similar observations made by the JWST.

NASA's James Webb Space Telescope is finding clues that are leading scientists toward the origins of the interstellar comet 3I/ATLAS.

The James Webb Space Telescope observed a large amount of methane around 3I/ATLAS, revealing just how different it is from comets from our solar system.

If the new Vera C. Rubin Observatory had begun its science validation phase a few weeks earlier, it might have been up and running in time to discover 3I/ATLAS first.