A12荐读 - 霞光

· · 来源:class资讯

The ISS does have its own defenses, of course. Fabric-y buffers envelope some of the systems, and a bumper called the Whipple Shield helps blunt impact. That shield is only built to stop debris up to about 1 cubic centimeter, though, and the debris tracker is only designed to catch pieces 10 cubic centimeters and larger. In other words, there’s a gap in defenses.

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After US President Donald Trump oversaw the seizure of his Venezuelan counterpart Nicolás Maduro last month, he vowed to tap the country's oil reserves – the world's largest.

stability