Mepụta nsụgharị dị mgbagwoju anya nke ahịrịokwu a Ọnọdụ ihu igwe dị na mbara igwe bụ ọnọdụ gburugburu ebe obibi n'ime Solar System, gụnyere ifufe anyanwụ.
N'ezie, ụdị okwu dị mgbagwoju anya nke ahịrịokwu ahụ bụ "Ọdịdị ihu igwe nke mbara igwe bụ ọnọdụ gburugburu ebe obibi na-agbanwe agbanwe n'ime usoro mbara igwe, gụnyere ifufe anyanwụ, na karịsịa oghere nke gbara ụwa gburugburu, gụnyere ọnọdụ dị nso na mbara ụwa nke magnetosphere kọwapụtara ruo na ionosphere na thermosphere. "