TAG标签 :地球

美载人"龙"飞船返回地球

美载人"龙"飞船返回地球

阅读(697) 作者(Kelly

Crew Dragons splashdown美载人“龙”飞船返回地球The SpaceX Crew Dragon "Endeavour" spacecraft carrying two NASA astronauts parachuted to a sp...

太阳黑子消失 地球或迎小冰期

太阳黑子消失 地球或迎小冰期

阅读(239) 作者(shaun

The sun has gone "completely blank" for the second time this month suggesting that Earth could be heading for a mini ICE AGE.本月已...

假如地球只剩最后一小时

假如地球只剩最后一小时

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What would you do in your last 60 minutes?An asteroid is on a collision course with the earth and you have one hour left to live...