Space Image of the Day Gallery (August 2015)

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Mutual Attraction

Canada-France-Hawaii Telescope/Coelum

Monday, August 31, 2015: Globular cluster Messier 92 lies roughly 26,000 light years away in the constellation of Hercules. This celestial object contains hundreds of thousands of stars bound together by mutual gravitational attraction in a space 100 light years in diameter. Researchers have great interest in these clusters as they are the oldest stellar systems known in the universe, being 12 to 14 billion years old.

— Tom Chao

Tom Chao
Tom Chao
Tom Chao has contributed to SPACE.com as a producer and writer since 2000. As a writer and editor, he has worked for the Voyager Company, Time Inc. New Media, HarperCollins and Worth Publishers. He has a bachelor’s degree in Cinema Production from the University of Southern California, and a master’s degree from NYU’s Gallatin School of Individualized Study. To find out what his latest project is, you can follow Tom on Google+.