FBI's 10 most wanted cyber criminals
Founded in 1970 as a day of environmental education, Earth Day is now celebrated worldwide. Check out the numbers behind this global holiday.
Before becoming Honolulu's first licensed fire chief, Alexander Cartwright did something greater. He created the game of baseball.
It's like finding a needle in a universe-wide haystack. Researchers have located a planet roughly the size of Earth that could be habitable.
Designated Kepler-186f, the planet is 490 light-years away. But in the search for worlds similar to ours, noth...