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Last updated on April 21, 2014 at 1:20 EDT

Latest Infrared Optical Telescope Array Stories

52b6e04ea486fd86b7744aa05a59e9a71
2009-12-15 09:55:00

About 550 light-years from Earth, a star like our Sun is writhing in its death throes. Chi Cygni has swollen in size to become a red giant star so large that it would swallow every planet out to Mars in our solar system. Moreover, it has begun to pulse dramatically in and out, beating like a giant heart. New close-up photos of the surface of this distant star show its throbbing motions in unprecedented detail. "This work opens a window onto the fate of our Sun five billion years from now,...