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
Deer in mythology stood in some sort of connexion to Odin's endowment of the dignity of kings." In Greek mythology, the deer is particularly associated with Artemis in her role as virginal huntress. Actaeon, after witnessing the nude figure of Artemis bathing in a pool, was transformed by Artemis into a stag that his own hounds tore to pieces. Callimachus, in his archly knowledgeable "Hymn III to Artemis", mentions the deer that drew the chariot of Artemis: One of the Labors of Heracles was to capture the Cerynian Hind sacred to Artemis and deliver it briefly to his patron, then rededicate it to