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 identities. Many cultures have mythic or folkloric explanations for how twins are conceived. In Greek mythology, some twins were conceived when a woman slept with both a mortal and a god on the same day, like Alcmene for example. One of her offspring, Heracles, had godlike qualities such as immense strength and stamina, while his twin brother, Iphicles, was to be an ordinary mortal. In many Native American cultures, eating certain foods were thought to increase the likelihood of twins. These foods included double almonds and bananas, and were typically avoided by Native American women because birthing twins was frowned