Dark Matter Makes 'Super Spiral' Galaxies Spin up to 350 Miles Per Second

(Credit: NASA, ESA, P. Ogle and J. DePasquale (STScI))The larger the spiral galaxy, the faster it spins. That's a well-known fact for astronomers. But a few years ago, researchers discovered a new class of jumbo-sized spiral galaxies; astronomers call them "super spirals."
And, in a surprise find published in The Astrophysical Journal Letters, researchers now say that these super spirals are actually rotating even faster than predicted based on the visible sizes of the galaxies. The fas