More than 250 metric tons of lunar dust will be lofted above the surface of the Moon.

超过250万吨月球尘埃将放样以上的月球表面。

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The layer of lunar dust on the rocky moon is thin, so was blown away from the landing area by the descent engines.

多岩石的月球上土层非常薄，所以在机器下降的时候土会被吹走。

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It's not yet the drinking kind. It's not even in liquid form, but it is instead bound up with minerals in lunar dust.

它还算不上饮用水，甚至还不具液体形态，而是蕴藏于月球尘土中的矿物。

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Three days later when the first men to reach another world arrived, their initial act, within moments of setting foot there, was to document and collect a precious sample of lunar dust, to share with laboratories across the Earth.

BBC: The magic of Apollo

They have been testing a laser system for measuring lunar dust and soil kicked up by rocket exhausts, and while using precipitation as a substitute to calibrate the laser, they found they could measure the average size of raindrops passing through it.

ENGADGET: NASA accidentally improves weather forecasting with lunar dust-measuring lasers

And the first man to leave footprints in the lunar dust, Apollo 11 Commander Neil Armstrong -- aside from geologist Schmitt, the only other civilian in the collection of moonwalkers -- later sat on several corporate boards and the presidential commission that investigated the 1986 Challenger space shuttle disaster.

CNN: After walking on moon, astronauts trod various paths