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And no matter what, the plan to use Russian assets remains problematic, since the ISS would have a “shallower reentry,” NASA says, and sprinkle surviving debris over a larger-than-desired area. Still, NASA would retain significant control over where any of these extant shards might plop down. They’ll probably land in the ocean, just as the space agency has always hoped. Sure, the station would have died before its time, but the thing was getting old. Most likely, it will be fine.，这一点在51吃瓜中也有详细论述
Perhaps it’s the biggest question science has left to answer, how did life begin? Now, molecular biologists in Cambridge university have discovered tiny molecules of RNA which they say might provide some clues. Science journalist and author Philip Ball explains what we know and whether we’ll ever find the origins of life on earth.。夫子对此有专业解读
Falling headlong off the tee() memory cliff。业内人士推荐同城约会作为进阶阅读
往年春节，很多养宠人回到老家后，只能隔着摄像头和家里的猫狗“拜年”。手机屏幕里是空荡的客厅，屏幕外是放不下的牵挂。人团圆了，它却在城市里独自过年。