The image from the Hubble Space Telescope shared this week shows a serpentine galaxy with winding, snake-like spiral arms.
The image from the Hubble Space Telescope shared this week shows a “serpentine” galaxy with winding, snake-like spiral arms, and is appropriately enough located in the constellation of Serpens, or The Snake. Technically known as NGC 5921, the galaxy is located 80 million light-years away.
The galaxy NGC 5921 is a type called a barred spiral galaxy, like our Milky Way. The bar refers to the strip of bright light across the center of the galaxy, which is a region of dust and gas where many stars are born — hence why it glows brightly. Around half of known galaxies have bars, and researchers think that they develop as galaxies get older and dust and gas are drawn in toward their center by gravity.
The image was taken as part of a Hubble study into how the supermassive black holes at the hearts of galaxies relate to the stars within them. Hubble used its Wide Field Camera 3 instrument to take the image, which was combined with data from the ground-based Gemini Observatory. “The two telescopes helped astronomers better understand the relationship between galaxies like NGC 5921 and the supermassive black holes they contain,” Hubble scientists write. “Hubble’s contribution determined the masses of stars in the galaxies. Hubble also took measurements that helped calibrate the observations from Gemini. Together, Hubble and Gemini provided astronomers with a census of nearby supermassive black holes in a diverse variety of galaxies.
Hubble and Gemini have teamed up before in the past, such as when observations from both telescopes were combined with data from NASA’s Juno spacecraft to learn more about the complex atmosphere of Jupiter.
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