3 years ago
YinofYang
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"New Study Finds Milky Way has Four Arms, Not Two"
Please click to read the rest of the article on Popular Science "A new study provides evidence that our own home galaxy actually has four major spiral “arms,” instead of two. Can I just point out this is 100 percent more arms than our latest understanding of the shape of the Milky Way? The evidence comes from the Red MSX Source survey, headquartered at the University of Leeds in the U.K., and was published last month in the journal Monthly Notices of the Royal Astronomical Society. Astronomers had previously thought the Milky Way had four arms, but in 2008, data from NASA’s Spitzer Space Telescope pointed to just two major arms."
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