Largest-known spiral galaxy spotted by NASA’s GALEX mission.
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A multinational team of astronomers has discovered the largest-known spiral galaxy. While spiral galaxy NGC 6872 has ranked among the biggest stellar systems for years, astronomers recently labeled it the largest-known spiral galaxy after examining data from NASA’s Galaxy Evolution Explorer (GALEX) mission. NGC 6872 stretches more than 522,000 light-years, making it more than five times the size of our Milky Way galaxy.
GALEX has played an essential role in astronomers’ ability to study NGC 6872.