Planet When subsequent planets were discovered in the 18th and 19th centuries, the naming practice was retained with "Neptūnus" (Poseidon). Uranus is unique in that it is named for a Greek deity rather than his Roman counterpart. Some Romans, following a belief possibly originating in Mesopotamia but developed in Hellenistic Egypt, believed that the seven gods after whom the planets were named took hourly shifts in looking after affairs on Earth. The order of shifts went Saturn, Jupiter, Mars, Sun, Venus, Mercury, Moon (from the farthest to the closest planet). Therefore, the first day was started by Saturn (1st hour), second
Ego the Living Planet the company-wide crossover storyline "Maximum Security", appearing in "Avengers" #35 (Dec. 2000); "Maximum Security: Dangerous Planet" (Oct. 2000); "Iron Man" #34–35 (Nov.–Dec. 2000); "X-Men Unlimited" #29 (Dec. 2000); "Gambit" #23 (Dec. 2000) and "Maximum Security" #1–3 (Dec. 2000Jan. 2001). The character returned in "Nova" vol 4 #20–30 and "Astonishing Thor" #1–5 (Nov 2010July 2011). Ego the Living Planet also appeared in the "Oni Press Color Special." Ego once told Thor that his existence was the result of a scientist merging with a planet when that planet's sun went nova. Ego began absorbing space vessels and even other worlds to survive