{"id":141610,"url":"https://www.kudos365.com/news/141610-interstellar-comet-2i-borisov","short_url":"https://www.kudos365.com/news/141610","headline":"Interstellar Comet 2I Borisov","content":"\u003cp\u003eNASA Astronomy Picture of the Day:\u003c/p\u003e\n\n\u003cp\u003eFrom somewhere else in the Milky Way galaxy, Comet 2I/Borisov was just visiting the Solar System. Discovered by amateur astronomer Gennady Borisov on August 30, 2019, the first known interstellar comet is seen in these two Hubble Space Telescope images from November and December 2019. On the left, a distant background galaxy near the line-of-sight to Borisov is blurred as Hubble tracked the speeding comet and dust tail about 327 million kilometers from Earth. At right, 2I/Borisov appears shortly after perihelion, its closest approach to Sun. European Southern Observatory observations indicate that this comet may never have passed close to any star before its 2019 perihelion passage. Borisov's closest approach to our fair planet, a distance of about 290 million kilometers, came on December 28, 2019. Even though Hubble's sharp images don't resolve the comet's nucleus, they did lead to estimates of less than 1 kilometer for its diameter.\u003c/p\u003e\n\n","content_plain":"NASA Astronomy Picture of the Day:\n\nFrom somewhere else in the Milky Way galaxy, Comet 2I/Borisov was just visiting the Solar System. Discovered by amateur astronomer Gennady Borisov on August 30, 2019, the first known interstellar comet is seen in these two Hubble Space Telescope images from November and December 2019. On the left, a distant background galaxy near the line-of-sight to Borisov is blurred as Hubble tracked the speeding comet and dust tail about 327 million kilometers from Earth. At right, 2I/Borisov appears shortly after perihelion, its closest approach to Sun. European Southern Observatory observations indicate that this comet may never have passed close to any star before its 2019 perihelion passage. Borisov's closest approach to our fair planet, a distance of about 290 million kilometers, came on December 28, 2019. Even though Hubble's sharp images don't resolve the comet's nucleus, they did lead to estimates of less than 1 kilometer for its diameter.\n\n","published_at":"2022-03-05T12:16:03-08:00","updated_at":"2026-07-07T18:04:22-07:00","author":{"type":"Person","name":"Specola-","url":"https://www.kudos365.com/profiles/298285-specola"},"description":"Stay up-to-date with Specola on Kudos365. View their photo published Mar/05/2022 on Science and Technology. Browse your favorite topics and share your expertise, too.","type":"photo","image":"https://k365pi.imgix.net/2ab26b0d-ef3e-4299-ab4d-84237b4e8c9e.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","likes_count":5,"comments_count":1,"categories":[{"name":"Science and Technology","url":"https://www.kudos365.com/categories/986-science-and-technology"}],"schema":{"@context":"https://schema.org","@type":"CreativeWork","url":"https://www.kudos365.com/news/141610-interstellar-comet-2i-borisov","headline":"Interstellar Comet 2I Borisov","image":"https://k365pi.imgix.net/2ab26b0d-ef3e-4299-ab4d-84237b4e8c9e.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","author":{"@type":"Person","name":"Specola-","url":"https://www.kudos365.com/profiles/298285-specola"},"datePublished":"2022-03-05T12:16:03-08:00","interactionStatistic":[{"@type":"InteractionCounter","interactionType":"https://schema.org/LikeAction","userInteractionCount":5}],"subjectOf":[{"@type":"Thing","name":"Science and Technology","url":"https://www.kudos365.com/categories/986-science-and-technology"}]}}