Supermassive black holes all over the universe are merging, a fate that will eventually come for the black hole at the center of our galaxy. These mysterious cosmic structures at the heart of nearly ...
The Deep Impact impactor spacecraft scored a direct hit on Tempel 1 on July 4, (see page 28). The flyby craft took this picture 67 sec. after the strike with its high-resolution camera. The ejected ...
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