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NASA's found the smallest black hole it's ever seen, thanks to the Rossi X-Ray Timing Explorer (RXTE) -- weighing around three times as much our own sun, it's near the bottom weight limit for the super-heavy phenomena. It was discovered by its unique "heartbeat", an X-Ray emission that takes pl...

3 years ago 0 Comments
December 19, 2011 at 3:07PM