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Bioluminescence benefits animals in many ways. Some animals with this ability use their light to lure prey, distract predators, or to attract a mate. Learn more about how animals use bioluminescence to help them survive in their environments.

Growing up in the 1920s on a dirt-poor farm in North Dakota, Mary Sherman's life was filled with chores—until she finally began school and discovered she loved to learn. Mary excelled at science, especially chemistry, and leaped at the chance to work in a laboratory during World War II designing rocket fuels. And when the US decided to enter the space race, Mary was chosen over her male colleagues to create the fuel to launch a rocket carrying America's first satellite.

Today, everyone is familiar with Neil Armstrong's famous words as he first set foot on the moon: "one small step for man; one giant leap for mankind." But America's journey to the moon was anything but simple. In 1957, the Soviet Union launched Sputnik, the world's first satellite, into orbit; later that year, America's first attempt was such a failure that the media nicknamed it "Kaputnik." Still, we didn't give up. With each failure, we gleaned valuable information about what went wrong, and how to avoid it in the future. So we tried again. And again. And each time we failed, we failed a little bit better.