Comet Lemmon lights up the sky over Spain | Space photo of the day for Nov. 11, 2025

Comet Lemmon lights up the sky over Spain photo of the day for Nov. 11, 2025 | Space Skip to main content Don’t miss these Astrophotography Astrophotographers capture dazzling new views of Comet C/2025 A6 (Lemmon) as it brightens for October skies Stargazing Solar wind tears a chunk from Comet Lemmon’s tail in incredible new astrophotography images Stargazing Comet Lemmon’s ghostly tail haunts the skies above England (photo) Astrophotography Glowing meteor trail photobombs Comet Lemmon in incredible telescope footage. ‘A pure perspective miracle’ Stargazing See Comet Lemmon cross paths with a cosmic serpent tonight Astronomy Scientists capture interstellar invader comet 3I/ATLAS growing a tail: ‘This image is both a scientific milestone and a source of wonder’ (photo, video) Stargazing Interstellar comet 3I ATLAS glows green during lunar eclipse | Space photo of the day for Sept. 15, 2025 Stargazing How to see Comet C/2025 R2 (SWAN) shine in the October sky Skywatching Kit How to view and photograph comets Comets Watch comets Lemmon and SWAN make their closest approach to Earth on Oct. 24 (video) Stargazing Autumn 2025 Skywatching sights: 8 targets to see in the night sky Comets I watched scientists view the interstellar comet 3I/ATLAS in real time. Here’s what they saw Stargazing Could new comet C/2025 R2 (SWAN) become visible to the naked eye in October? Here’s what we know Comets Interstellar comet 3I/ATLAS blasts a jet towards the sun in new telescope image Stargazing Trick or treat: Here’s where to find comets Lemmon, SWAN and 3I/ATLAS in the Halloween sky The streak of Comet Lemmon was recently seen in the night sky. (Image credit: Anadolu / Getty Images) Comets of this type aren’t everyday sightings. The opportunity to observe objects that might have orbital periods measured in thousands of years is fleeting. So when Comet Lemmon recently appeared in the night sky, eager skywatchers looked up to observe it move across the heavens.What is it?Comet Lemmon, or C/2025 A6, was discovered by the Arizona-based Mount Lemmon Survey, which observed it as an almost asteroid‐like object; it was later re-classified as a comet once coma and tail features became evident.Comets are often described as “dirty snowballs” — icy bodies laced with dust and rock — from the fringes of the solar system. When they approach the sun, they heat up, releasing gas and dust that form the coma (the glowing cloud around the nucleus) and the tail(s) that stream away from them. Studying these phenomena gives insight into primordial solar system material. You may like Astrophotographers capture dazzling new views of Comet C/2025 A6 (Lemmon) as it brightens for October skies Comet Lemmon’s ghostly tail haunts the skies above England (photo) Solar wind tears a chunk from Comet Lemmon’s tail in incredible new astrophotography images In recent years, improved survey telescopes (like those used in the Mount Lemmon Survey) and more frequent astrophotography mean we’re discovering and documenting more comets than ever. Yet, large and bright comets visible even to the unaided eye remain uncommon.Where is it?This photograph was taken near Pedraforca mountain in the Bergueda region in Spain. The streak of Comet Lemmon’s tail lit up the night sky. (Image credit: Anadolu / Getty Images)Why is it amazing?The image provides more than just a beautiful view; it records a moment of active sublimation: dust and gas escaping the nucleus due to solar heating. The color of a comet’s coma often indicates what gases may be fluorescing under solar UV radiation, offering clues to the icy body’s composition. Capturing the tail and coma structure helps astronomers model the dust production rate, tail shape and size, and how the comet is interacting with the solar wind and radiation pressure.Want to learn more?You can learn more about astrophotography and Comet Lemmon.Get the Space.com NewsletterBreaking space news, the latest updates on rocket launches, skywatching events and more!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors Kenna Hughes-CastleberryKenna Hughes-Castleberry is the Content Manager at Space.com. Formerly, she was the Science Communicator at JILA, a physics research institute. Kenna is also a freelance science journalist. Her beats include quantum technology, AI, animal intelligence, corvids, and cephalopods. 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Logout Read more Astrophotographers capture dazzling new views of Comet C/2025 A6 (Lemmon) as it brightens for October skies    Solar wind tears a chunk from Comet Lemmon’s tail in incredible new astrophotography images    Comet Lemmon’s ghostly tail haunts the skies above England (photo)    See Comet Lemmon cross paths with a cosmic serpent tonight    Glowing meteor trail photobombs Comet Lemmon in incredible telescope footage. ‘A pure perspective miracle’    Scientists capture interstellar invader comet 3I/ATLAS growing a tail: ‘This image is both a scientific milestone and a source of wonder’ (photo, video)    Latest in Comets No, interstellar comet 3I/ATLAS hasn’t ‘changed color’, scientist says    China’s Tianwen 1 Mars probe captures images of interstellar comet 3I/ATLAS    Interstellar invader Comet 3I/ATLAS is still full of surprises — an unexpected brightening has scientists baffled    You won’t see interstellar comet 3I/ATLAS zoom closest to the sun on Oct. 30 — but these spacecraft will    Interstellar comet 3I/ATLAS could help protect Earth from dangerous asteroids. Here’s how    Awakening an interstellar wanderer: Surprising nickel detection in Comet 3I/ATLAS    Latest in News Sun unleashes strongest solar flare of 2025, sparking radio blackouts across Africa and Europe    Does quantum gravity exist? A new experiment has deepened the mystery    SpaceX launches 29 Starlink satellites to orbit from Florida    Space rescue services needed? 2 ‘stranded’ astronaut incidents are a ‘massive wake-up call,’ experts say    Scientists 3D printed muscle tissue in microgravity. The goal is to make human organs from scratch    ‘Shockingly large’ amount of sensitive satellite communications are unencrypted and vulnerable to interception, researchers find    MORE FROM SPACE…1Comet Lemmon lights up the sky over Spain | Space photo of the day for Nov. 11, 20252Does quantum gravity exist? 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