Tag

C2025 K1 Atlas

All articles tagged with #c2025 k1 atlas

Hubble Sees Comet ATLAS Split into Four Fragments
science18 days ago

Hubble Sees Comet ATLAS Split into Four Fragments

NASA/ESA’s Hubble Space Telescope captured comet C/2025 K1 (ATLAS) breaking into four fragments just after its perihelion, each surrounded by its own coma. The near-simultaneous breakup provides a rare, nearly pristine sample to study the comet’s composition and the physics of fragmentation and dust-layer formation, offering insights into how icy bodies evolve in the solar system. Observations were made in early November 2025 from about 250 million miles away, and scientists highlighted the serendipitous timing as a reminder that unexpected results can drive breakthrough science.

Hubble snapshots real-time breakup of distant comet C/2025 K1 ATLAS
space21 days ago

Hubble snapshots real-time breakup of distant comet C/2025 K1 ATLAS

NASA’s Hubble Space Telescope captured, in real time, the fragmentation of the long‑period comet C/2025 K1 (ATLAS) after its near‑Sun passage, identifying at least four fragments over three days (Nov. 8–10, 2025) with one fragment fragmenting again; breakup began about a week earlier as heating and stress from perihelion likely exposed dust layers. K1, ~8 km across and from the distant Oort Cloud, was discovered by ATLAS in May 2025. The observations, described in a 2026 Icarus paper, offer rare insight into the physics of comet surfaces and dust production during disintegration.

Upcoming Comets: Visibility and Sightings This Autumn
science6 months ago

Upcoming Comets: Visibility and Sightings This Autumn

Astronomers are monitoring three comets this fall, but only Comet Lemmon (C/2025 A6) might become visible to the naked eye under dark skies, while the others, C/2025 R2 (SWAN) and C/2025 K1 (ATLAS), are too dim for unaided viewing. Comet Lemmon is expected to brighten as it approaches perihelion in November, but visibility depends on its actual brightness, which remains uncertain.