Interstellar comets are the original cosmic explorers, and by studying their metallic whispers, we are learning the secrets ...

The comet is now racing away from the sun following a close flyby on Jan. 20.

Observations of interstellar object 3I/ATLAS show increased water, carbon dioxide, and organic gas release after its passage near the Sun, based on data from NASA’s SPHEREx mission ...

NASA confirms Comet C/2024 E1's perihelion on 20 January 20 will increase brightness but limit visibility; experts urge ...

The fate of a comet that was predicted to pass close to Earth remains a mystery five years after its dramatic breakup in the inner solar system.

This discovery has drawn interest from both professional researchers and skywatchers because comets are ancient remnants from the early formation of ...

A newly discovered comet, C/2026 A1 (MAPS), is generating excitement as it may become naked-eye visible by April 2026. This Kreutz sungrazer was detected at a record distance from the Sun, suggesting ...

“3I/ATLAS presents a new opportunity to study an interstellar object, and observations in X-ray light will complement other observations to help scientists figure out what it is made of,” ESA ...

Comet G3 is on its first voyage into the inner solar system, meaning it’s packed with volatile materials that have never been exposed to the Sun’s warmth before. This makes its behavior somewhat ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. On Friday, Oct. 17, 2025, Comet Lemmon will be visible both ...

A famous comet visiting from outside our solar system known as 3I/ATLAS is blazing through our cosmic neighborhood, leaving a striking trail in its wake. A ground telescope in Chile recently glimpsed ...

(CNN) — When a new comet appears in the sky, there is often excitement. But things don’t always end well for the ancient celestial objects, made of ice, frozen gases and rock, as they near the sun — ...