[新聞] 小行星撞擊地球」NASA證實雲南爆炸!威力=540噸TNT炸藥消失
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「小行星撞擊地球」NASA證實雲南爆炸!威力=540噸TNT炸藥
3.完整新聞內文:
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4.完整新聞連結 (或短網址):
據美國太空總署(NASA)證實,地球在4日20時07分05秒發生一次小行星撞擊事件,地點就
在雲南香格里拉市西北40公里處,爆炸威力相當於540噸TNT黃色炸藥,這樣的威力比2014
年的內蒙古席林格勒事件(450噸)還要強上90噸。
據《多維新聞》報導,這顆小行星相對地球的速度為14.6K公里/秒,空爆高度只有37公
里,有可能會有未燃盡的隕石掉落到地面。此外,也有當地民眾拍到疑似掉落的「隕石」
劃破夜空的影片。
當時在大理古城的民眾馬薩表示,因為多雲的天氣導致當晚無法賞月,但卻被突如其來的
亮光照如白晝,原本以為是不明物體掉落在麗江,後來看到微信上朋友圈的朋友討論也都
有看到奇觀,「不知道是不是隕星,當時在大理戶外的人都看到了。」
據悉,隕石是小塊的固體碎片,它的來源是小行星或是彗星,起源於外太空,對地球的表
面及生物都有影響,在撞擊地表之前稱為「流星」。TNT又稱「黃色炸藥」,現今有關爆
炸和能量釋放的研究,也常常以「公斤黃色炸藥」、「噸黃色炸藥」作為單位,以比較爆
炸、地震、行星撞擊等大型反應。
https://www.ettoday.net/news/20171005/1025658.htm?from=fb_et_news
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