Scientistshavealwayswantedtoknowmoreabouttheunivers...
问题详情: Scientistshavealwayswantedtoknowmoreabouttheuniverse(宇宙)Yearsagotheyknewmanythingsaboutthemoon.theyknewhowbigitwasandhowfarawayitwasfromtheearth,buttheywantedtoknowmoreaboutit.Theyth...