More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
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A woman named Rachel Krishevsky who died at age 99 had 1,400 direct descendants.
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In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
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A teen in Michigan built a working nuclear reactor. He taught himself how to build it as a weekend hobby project in his basement from ages 15-17 for $3500.
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