A Star’s Spin Can Now Tell Us All About Its Age

January 6, 2015 2:05 PM

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Young stars’ ages no longer represent a mystery, as astronomers have found a method that can accurately tell the of stars based on how fast they are spinning.

Small young and cool stars are numerous and bright, lighting up some of the oldest parts of the galaxy, as Soren Meibom of the Harvard-Smithsonian said. But they can make it be very difficult when it comes to the measurement of their age. Throughout their life, they seem to maintain the same size an...

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