英语翻译ScientiststhinkthattherehasbeenlifeonEarthformillionsofyears.However,wehaven'tfoundlifeonotherplantsyet.Whynot?TheEarthisaplantanditgoesaroundtheSun.Noneofthemhasanenviormentwithair,sopeopleandthing
英语翻译
ScientiststhinkthattherehasbeenlifeonEarthformillionsofyears.However,wehaven'tfoundlifeonotherplantsyet.Whynot?
TheEarthisaplantanditgoesaroundtheSun.Noneofthemhasanenviormentwithair,sopeopleandthingscannotgrow.TheSunanditsplantsarecalledthesolarsystem.Thesolarsystemisasmallpartofourgalaxy.
Thestarsweseeatnightarethesunsinothersolarsystems.Therearemorethan200billionstarsinourgalaxy,calledtheMikyway,andourSunisonlyoneofthem.
Butscientistshavediscoveredmanyothergalaxiesintheuniverse.Theyarealongwayawayandtherelighthastravelledformanyyearstoreachus.Itishardtounderstandhowlargetheuniverseis.
Scientistshavelotsofspacecrafttolookatotherplantsinoursolarsystem,andsomespacecrafthavegonebeyondthesolarsystem.However,noonehasdiscoveredanylifeinspaceyet.
Butwhyhasnoonefromotherplantssentusamessage?Havetheytriedtosendimformationtous?Withsomanystarsintheuniverse,arewealone,oristherelifeoutthereinspace?Wedon'tkonw...yet.
真的非常非常感谢!