Theworld’sastronomerscametotheirsensesyesterdayandappro...
问题详情：Theworld’sastronomerscametotheirsensesyesterdayandapprovedanewdefinitionoftheword“planet”thatwoulddroptinyPlutofromtheclubandrelegateitinsteadtoalesserrealmof“dwarfplanets.”Itwasawelcomes...