'Peanut Stars'

Ohio State University astronomers and their colleagues have discovered a new type of star system, one that may be the progenitor of a rare type of supernova. The star system is called a “yellow supergiant eclipsing binary” -- it contains two very bright, massive yellow stars that are very closely orbiting each other. In fact, the stars are so close together that a large amount of stellar material is shared between them, so that the shape of the system resembles a peanut. (Credit: Image by Kevin Gecsi, courtesy of Ohio State University)

This is wierd, a couple of bound together stars. The observations were made with the Large Binocular Telescope (LBT) on Mt. Graham in Arizona. More here. There is a short video animation here that shows how the Peanut Stars might orbit each other. I would guess the solar system of these stars would be interesting. The find may go a ways to explaining some hereto unexplained supernova events; two supernova explosions have been linked to yellow super giant stars, but current theory doesn't predict any supernova should be yellow super giants.

As man's knowledge expands, the more he finds the less he really knows.