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 ...
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How 2025 became the year of comet: The rise of interstellar 3I/ATLAS, an icy Lemmon and a cosmic SWAN
Comet 3I/ATLAS was discovered on July 1, 2025, by the NASA-funded ATLAS telescope in Rio Hurtado, Chile and was quickly confirmed to be just the third interstellar visitor to our solar system, after ...
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2026: 3I/ATLAS forces a rethink of 'normal' comets
At 3.51 au from the Sun well beyond the region where water ice normally drives strong cometary activity 3I/ ATLAS still ...
Two newly discovered comets are streaking across the sky in a spectacular display as they make their closest approaches to Earth this month. Comets are made of ice, frozen gases and rock, and as they ...
Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A green comet continues to shine brightly after sunset for ...
You may have seen claims about three comets discovered this year: C/2025 K1 (ATLAS), C/2025 R2 (SWAN), and C/2025 A6 (Lemmon), being visible in the fall skies. Yeah ... about that. Other WRAL Top ...
Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. On Tuesday, Oct. 14, 2025, Comet Lemmon (C/2025 A6) will ...
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 ...
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Interstellar Comet 3I/ATLAS Shows "Extreme Negative Polarization". What Does That Mean?
A team of astronomers have presented the first polarimetric observations of interstellar comet 3I/ATLAS, finding that it has extreme negative polarization. On July 1, 2025, astronomers spotted an ...
New analyses from SOHO and the Green Bank Telescope indicate interstellar comet 3I/ATLAS behaved like a normal comet as it ...
AUSTIN (KXAN) — We’re just days away from the arrival of a comet from outside of our solar system. On December 19, 3I/ATLAS will make its closest approach to Earth after months of travel. This is the ...
No two comets are exactly alike. Of course, they can appear similar. Two decently bright comets that share a superficial resemblance are gracing our skies right now, in fact: C/2025 A6 (Lemmon) and ...
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