Comet

A comet is a celestial body composed of ice, dust, and rock that orbits the sun, forming a glowing coma and a tail when it approaches the inner solar system.

Why it’s in the news: It is in the news due to a recent NASA discovery that a long-known near-Earth object is actually a comet, which may aid planetary defense efforts.

Latest on Comet

• Green comet caught soaring over Namibia | Space photo of the day for Aug. 12, 2026
• Perplexity employee who worked on Comet launches an AI browser aimed at knowledge work
• After nearly 30 years, NASA realized this near-Earth asteroid is actually a comet. The discovery may help us defend the planet some day
• Redmond's reaper cometh: October 2026 set to bury a graveyard of Microsoft products
• More clues surface about the origins of interstellar comet 3I/ATLAS
• NASA looks for the origins of interstellar comet 3I/ATLAS | Space photo of the day for June 24, 2026

Connections

1 entities linked to Comet across the news graph.