{"id":215328,"url":"https://www.kudos365.com/news/215328-ngc-4449-small-galaxy-big-impact","short_url":"https://www.kudos365.com/news/215328","headline":"NGC 4449: Small Galaxy, Big Impact","content":"\u003cp\u003eNASA Astronomy Picture of the Day:\u003c/p\u003e\n\n\u003cp\u003eDon’t judge a galaxy by its size. Our home galaxy, the Milky Way, is about 100,000 light years across. This huge expanse of space contains hundreds of billions of stars! The smallest galaxies, called dwarf galaxies, are about 1/10th the size of the Milky Way and only contain a few billion stars. They are also the most common type of galaxy in the whole universe. Today’s image shows one such dwarf galaxy, NGC 4449, captured by the Hubble Space Telescope. NGC 4449 and similar dwarf galaxies are missing more oxygen than models predict. This suggests their stellar winds and supernovae are surprisingly effective at blowing away oxygen and other heavy elements. Turns out these tiny galaxies may play a big role in spreading heavy elements — the building blocks of stars, planets, and life — throughout the universe!\u003c/p\u003e\n\n\n\u003cp\u003ePhoto by NASA, ESA, A. Aloisi (STScI/ESA), and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration\u003c/p\u003e","content_plain":"NASA Astronomy Picture of the Day:\n\nDon’t judge a galaxy by its size. Our home galaxy, the Milky Way, is about 100,000 light years across. This huge expanse of space contains hundreds of billions of stars! The smallest galaxies, called dwarf galaxies, are about 1/10th the size of the Milky Way and only contain a few billion stars. They are also the most common type of galaxy in the whole universe. Today’s image shows one such dwarf galaxy, NGC 4449, captured by the Hubble Space Telescope. NGC 4449 and similar dwarf galaxies are missing more oxygen than models predict. This suggests their stellar winds and supernovae are surprisingly effective at blowing away oxygen and other heavy elements. Turns out these tiny galaxies may play a big role in spreading heavy elements — the building blocks of stars, planets, and life — throughout the universe!\n\n\nPhoto by NASA, ESA, A. Aloisi (STScI/ESA), and the Hubble Heritage (STScI/AURA)-ESA/Hubble Collaboration","published_at":"2026-11-11T14:28:32-08:00","updated_at":"2026-11-11T14:28:34-08:00","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 Nov/11/2026 on Science and Technology. Browse your favorite topics and share your expertise, too.","type":"photo","image":"https://k365pi.imgix.net/site/apod/generated/8424e180-fcf8-4fa2-846a-63ecd1eced85.jpg?auto=compress,format\u0026fit=max\u0026w=1200\u0026h=1200\u0026q=48","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/215328-ngc-4449-small-galaxy-big-impact","headline":"NGC 4449: Small Galaxy, Big Impact","image":"https://k365pi.imgix.net/site/apod/generated/8424e180-fcf8-4fa2-846a-63ecd1eced85.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":"2026-11-11T14:28:32-08:00","subjectOf":[{"@type":"Thing","name":"Science and Technology","url":"https://www.kudos365.com/categories/986-science-and-technology"}]}}