Astronomers discover most Earth-like planet yet_蜗牛与黄鹂鸟简谱

2019-06-12 07:00 来源:邱文友

缅甸维加斯客服Astronomers discover most Earth-like planet yet_妍多娜

香格里拉租车

日本通便小粉丸的危害

320万年前的宇宙战争

Kepler-186f,thefirstvalidatedEarth-sizeplanettoorbitadistantstarinthehabitablezone-arangeofdistancefromastarwhereliquidwatermightpoolontheplanet"ssurface,isseeninaNASAartist"sconceptreleasedApril17,2014.[Photo/Agencies]CAPECANAVERAL,Fla.-AplanetbelievedtoberemarkablysimilartoEarthhasbeendiscoveredorbitingadistantsun-likestar,bolsteringhopesoffindinglifeelsewhereintheuniverse,,whichisabout60percentbiggerthanEarth,islocated1,"sKeplerspacetelescopeandcirclesastarthatissimilarinsizeandtemperaturetothesun,butolder."Inmymind,thisistheclosestthingwehavetoanotherplanetliketheEarth,"astronomerJonJenkins,withtheUSspaceagency"sAmesResearchCenterinMoffettField,California,,dubbedKepler-452b,orbitsastarthatisabout6billionyearsold,"It"ssimplyawe-inspiringtoconsiderthatthisplanethasspent6billionyearsinthehabitablezoneofitsstar,"Jenkinssaid."That"sconsiderabletimeandopportunityforlifetoarisesomewhereonitssurfaceorinitsoceansshouldallthenecessaryingredientsandconditionsforlifeexistonthisplanet,"thesun,completinganorbitin385days,comparedtoEarth",surfacetemperatureswouldbesuitableforliquidwater,aconditionbelievedtobecriticalforlife.。

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