Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Swirling stars and a strong, variable radio source offer convincing evidence that even our own Milky Way galaxy's center harbors such a bizarre object , a mere 30,000 light-years away. Now, though relatively faint, the missing X-ray source may have been found. With radio and X-ray emission generated by infalling material, the Milky Way's central black hole is thought to have a mass of over 2 million suns.
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