Astronomers Fooled by the Largest Optical Illusion in the Universe

For years, astronomers thought that a galaxy floating 100 million light-years away was a single celestial object, a perfectly on-edge spiral galaxy with a colossal jet streaming away from it. But it's all just an optical illusion — and a rather massive one at that. » 11/15/13 7:40am 11/15/13 7:40am