how did the hadean eon get its name
Hadean "Hadean" (from Hades, the Greek god of the underworld) describes the hellish conditions then prevailing on Earth: the planet had just formed and was still very hot owing to its recent accretion, the abundance of short-lived radioactive elements, and frequent collisions with other Solar System bodies.
Theia In Greek mythology, Theia (/ˈθiːə/; Ancient Greek: Θεία, translit. Theía, also rendered Thea or Thia), also called Euryphaessa "wide-shining", is a Titaness. Her brother/consort is Hyperion, a Titan and god of the sun, and together they are the parents of Helios (the Sun), Selene (the Moon), and Eos (the Dawn).