Astronomers have observed dozens of newly forming stars surrounded by protoplanetary disks. Some look like grooved vinyl records, while others have developed bizarre spiral galaxy-like arms. These spiral arms account for about a third of the disks. Astronomers have finally directly observed a giant exoplanet that appears to be responsible for a set of protoplanetary arms. The planet has twice the mass of Jupiter and is unexpectedly red, the reddest planet ever seen because of all the dust surrounding it.


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Source: A Planet has Whipped Up Spiral Arms Around a Young Star