Astronomers have discovered a magnetar near the massive black hole known as Sagittarius A* in the center of the galaxy. By studying the spin of the magnetar -- a highly magnetized type of pulsar -- scientists hope to test predictions of Einstein's general theory of relativity. "There's huge interest in finding pulsars around supermassive black holes, and this is the first example. There's a lot we can learn from this," said Geoffrey Bower, a radioastronomer at the University of California, Berkeley.
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