Greek mythology in popular culture elements tantalum and niobium are always found together in nature, and have been named after the King Tantalus and his daughter Niobe. The element promethium also draws its name from Greek mythology, as does titanium, which was named after the titans who in mythology were locked away far underground, which reflected the difficulty of extracting titanium from ore. The U.S. Apollo Space Program to take astronauts to the moon, was named after Apollo, based the god's ability as an archer to hit his target and being the god of light and knowledge. Oceanographer Jacques-Yves Cousteau named his research ship, a
Twins in mythology In Zoroastrian mythology, the twins Ahriman and Ahura Mazda represent the spirits of evil and good. Good and evil are common conflicting personas within twins in mythology. We see this pattern across many cultures, such as several northeastern Native American tribes, for example. Gluskap, the creator God and cultural hero, had to defeat Malsum, his evil twin, who was the ruler of the demons. Many other cultures with rival twin heroes often follow this structure of split moral forces. Twins can also be shown as having special powers and deep bonds. In Greek mythology, Castor and Pollux share a bond