After a year circling the moon with a diverse array of instruments, LRO has revealed detailed images far different from the ones Brown University geology professor Jim Head used when he worked in the Apollo program, _________________________________. Brown says the lunar maps back then were based on images with lower resolution and limited viewing angles, which meant that deciding where astronauts could land involved a fair amount of guesswork.
"But what we have here with the LOLA instrument is in fact the ability to create topographic maps that actually look like images. _________________________________which we've combined together to create these global topographic maps and they give us an even portrayal of the topography, _________________________________."
which sent the first men to the moon
so we have over two and a half billion shots of visial data.
largely composed ** creaters over the whole surfaces of the moon
发表于 2013-7-22 10:08
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发表于 2013-7-22 14:05
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