New Study Confirms Milky Way Galaxy Has Four Spiral Arms

A 12-year study published in the Monthly Notices of the Royal Astronomical Society has confirmed that our Milky Way Galaxy has four spiral arms, following years of debate that it has only two arms.

http://www.sci-news.com/astronomy/science-milky-way-galaxy-four-spiral-arms-01649.html

http://click-to-read-mo.re/p/4L3O