Hubble Confirms Largest Comet Nucleus Ever Seen - NASA Science
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Hubble Confirms Largest Comet Nucleus Ever Seen - NASA Science
NASA's Hubble Space Telescope has determined the size of the largest icy comet nucleus ever seen by astronomers. The estimated diameter is approximately 80
Apr 12, 2022
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NASA's Hubble telescope captures sharpest image yet of interstellar comet racing through solar system
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Comet 3I/ATLAS - NASA Science
Comet 3I/ATLAS - NASA Science
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NASA releases new images of rare comet that sparked an alien spacecraft debate
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A comet from another star system is flying through ours. The comet, named 3I/ATLAS, is only the third known interstellar object ever observed in our solar system. First spotted in July 2025 by the ATLAS telescope in Hawaii, it didn’t take long for astronomers to realize it wasn’t from here. Its speed and trajectory made it clear: this comet came from deep space. At its closest point to the Sun – called perihelion – 3I/ATLAS was hidden from Earth’s view, blocked by the Sun. But Mars was perfectly
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A comet from another star system is flying through ours. The comet, named 3I/ATLAS, is only the third known interstellar object ever observed in our solar system. First spotted in July 2025 by the ATLAS telescope in Hawaii, it didn’t take long for astronomers to realize it wasn’t from here. Its speed and trajectory made it clear: this comet came from deep space. At its closest point to the Sun – called perihelion – 3I/ATLAS was hidden from Earth’s view, blocked by the Sun. But Mars was perfectly
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48 reactions | • Observation of Comet 2I/Borisov in October 2019 10.3.23 • On 12 October 2019, the NASA/ESA Hubble Space Telescope observed Comet 2I/Borisov at a distance of approximately 420 million kilometres from Earth. The comet is believed to have arrived here from another planetary system elsewhere in our galaxy. • Credit: NASA, ESA, D. Jewitt (UCLA) | Astronomy Nation | Facebook
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48 reactions | • Observation of Comet 2I/Borisov in October 2019 10.3.23 • On 12 October 2019, the NASA/ESA Hubble Space Telescope observed Comet 2I/Borisov at a distance of approximately 420 million kilometres from Earth. The comet is believed to have arrived here from another planetary system elsewhere in our galaxy. • Credit: NASA, ESA, D. Jewitt (UCLA) | Astronomy Nation | Facebook
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NASA's Hubble telescope captures sharpest image yet of interstellar comet racing through solar system
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Comet 3I/ATLAS - NASA Science
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nasa.gov
NASA releases new images of rare comet that sparked an alien spacecraft debate
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nasa.gov
A sungrazing comet's final moments were captured by the ESA/NASA Solar & Heliospheric Observatory on August 11, 2021. | Space.com
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Comet 3I/ATLAS is the third known object from outside our solar system to be discovered passing through our neighborhood. ☄ Track its current and future position using our "Eyes on the Solar System" interactive. Here it is passing near Mars in October: go.nasa.gov/4goaV2t All about Comet 3I/ATLAS and NASA's ongoing observations: science.nasa.gov/solar-system/comets/3i-atlas/ | NASA Solar System Exploration
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