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新估算称银河系或有60亿颗类地行星

2019-06-18 08:28 
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juwulixuejiazuzhiwang16ribaodao,jianadakexuejiazaizuixinyiqi《tianwenxuezazhi》zhuanwenzhichu,tamendejisuanbiaoming,yinhexiyueyou60yikeleisidiqiudexingxing。yanjiurenyuanqiangdiaoshuo,gujibutonghengxingzhouweichuxianbutongxingxingdejilv,keyiduixingxingdexingchengheyanhualiluntigongzhongyaoxianding,bingyouzhuyuyouhuaweilaijiangkaizhandezhizaixunzhaoxingxingderenwu。

彩票官网zuixinyanjiuhezuozhe、buliediangelunbiyadaxue(ubc)demixieer·guobenjieshishuo,yikexingxingruguoyaobeishiweileisidiqiudexingxing,zezheikexingxingbixushiyanshixingxing,daxiaoyudiqiuchabuduo,weiraoleisitaiyangdehengxing(gxinghengxing)xuanzhuan。erqie,zheikexingxingbixuweiyuhengxingyijuqunei,zaigaiquyunei,yanshixingxingdebiaomiankeyirongnayetaishui,yinci,youqianlishiheshengmingfanyanshengxi。

guobenshuo: “caipiaoguanwangdejisuanbiaoming,meikegxinghengxingyongyouleidixingxingdeshangxianwei0.18ke。ciqian,youkexuejiagusuanmeikeleirihengxingyongyouqianzaiyijuxingxingdeshuliangcong0.02kedaochaoguo1kebudeng。”

yanjiulingyihezuozhe、ubctianwenxuejiajiemi·maxiuzhichu: “yinhexizhiduoyongyou4000yikehengxing,qizhong7%shigxinghengxing,zheiyiweizhezaiyinhexizhongkenengzhiyoubudao60yikeleidixingxing。”

tongchang,yuqitaleixingdexingxingxiangbi,leidixingxinggengrongyichengweixiwaixingxingsousuorenwude“louwangzhiyu”,yinweitamentaixiao,erqiejuhengxinghenyaoyuan,zheiyiweizhexianyouxiwaixingxingmulushangchuxiandexingxingjinjinzhishibeisousuohengxingzhouweixingxingdeyixiaobufen。

youjianyuci,guobenshiyongyizhongmingwei“zhengxiangjianmo”dejishulaikefushangshuwenti。tajieshishuo: “caipiaoguanwangshouxianmonilekaipuletaikongwangyuanjingsuosouxunhengxingzhouweixiwaixingxingdezongshu。jiyucaipiaoguanwangdexingxingsousuosuanfazhaodaotamendekenengxing,caipiaoguanwangjiangmeikexingxingbiaojiwei‘yifaxian’huo‘weizhaodao’。ranhou,caipiaoguanwangjiangtancedaodexingxingyucaipiaoguanwangdeshijixingxingmulujinxingbijiao。ruguomonijieguofeichangjiejin,neimezuichudexingxingshulianghenkenengjiushiraozheixiehengxingyunxingdexingxingdeshijishuliang。”(jizheliuxia)

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