Jan 07

It turns out, like us, stars slow down in their old age. That observation is the key to a new method astronomers are using to accurately tell the age of cool stars — stars that match the size of, or…

Jul 12

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From a gigantic rainbow serpent fashioned out of recycled jerry cans to a painting of girls dancing against a Milky Way backdrop, the Smithsonian's "African Cosmos: Stellar Arts" exhibit examines how African artists through time have looked to the sky,…