{"id":214841,"url":"https://www.kudos365.com/news/214841-arp-78-peculiar-galaxy-in-aries-09-30-26","short_url":"https://www.kudos365.com/news/214841","headline":"Arp 78: Peculiar Galaxy in Aries • 09/30/26","content":"\u003cp\u003eNASA Astronomy Picture of the Day:\u003c/p\u003e\n\n\u003cp\u003ePeculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries. Some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy, the island universe is an enormous 200,000 light-years across. Also known as NGC 772, it sports a prominent, outer spiral arm in this detailed cosmic portrait. Tracking along sweeping dust lanes and lined with young blue star clusters, Arp 78's overdeveloped spiral arm is pumped-up by galactic-scale gravitational tides. Interactions with its brightest companion galaxy, the more compact NGC 770 seen directly below the larger spiral, are likely responsible. Embedded in faint star streams revealed in the deep telescopic exposure, NGC 770's fuzzy, elliptical appearance contrasts nicely with spiky foreground Milky Way stars.\u003c/p\u003e\n\n\n\u003cp\u003ePhoto by Robert Eder\u003c/p\u003e","content_plain":"NASA Astronomy Picture of the Day:\n\nPeculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries. Some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy, the island universe is an enormous 200,000 light-years across. Also known as NGC 772, it sports a prominent, outer spiral arm in this detailed cosmic portrait. Tracking along sweeping dust lanes and lined with young blue star clusters, Arp 78's overdeveloped spiral arm is pumped-up by galactic-scale gravitational tides. Interactions with its brightest companion galaxy, the more compact NGC 770 seen directly below the larger spiral, are likely responsible. Embedded in faint star streams revealed in the deep telescopic exposure, NGC 770's fuzzy, elliptical appearance contrasts nicely with spiky foreground Milky Way stars.\n\n\nPhoto by Robert Eder","published_at":"2026-09-30T14:16:00-07:00","updated_at":"2026-10-01T11:28:29-07:00","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 Sep/30/2026 on Science - Tech - Astronomy. Browse your favorite topics and share your expertise, too.","type":"photo","image":"https://k365pi.imgix.net/site/apod/generated/054f9e9b-0868-4072-8f97-ba149b714abd.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","likes_count":4,"categories":[{"name":"Science - Tech - Astronomy","url":"https://www.kudos365.com/categories/986-science-tech-astronomy"}],"schema":{"@context":"https://schema.org","@type":"CreativeWork","url":"https://www.kudos365.com/news/214841-arp-78-peculiar-galaxy-in-aries-09-30-26","headline":"Arp 78: Peculiar Galaxy in Aries • 09/30/26","image":"https://k365pi.imgix.net/site/apod/generated/054f9e9b-0868-4072-8f97-ba149b714abd.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":"2026-09-30T14:16:00-07:00","interactionStatistic":[{"@type":"InteractionCounter","interactionType":"https://schema.org/LikeAction","userInteractionCount":4}],"subjectOf":[{"@type":"Thing","name":"Science - Tech - Astronomy","url":"https://www.kudos365.com/categories/986-science-tech-astronomy"}]}}