Our galaxy might hold thousands of ticking ‘time bombs’


Related images (click to enlarge) In the Hollywood blockbuster “Speed,” a bomb on a bus is rigged to blow up if the bus slows down below 50 miles per hour. The premise — slow down…

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Newly merged black hole eagerly shreds stars


A galaxy’s core is a busy place, crowded with stars swarming around an enormous black hole. When galaxies collide, it gets even messier as the two black holes spiral toward each other, merging to make…

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