posted on Apr, 8 2010 @ 09:00 PM
reply to post by Quickfix
I trust my eyeballs. I've been looking at the Moon my whole life, both with telescopes and without. It's grey, so when I see a photo with colors I
understand that it's been processed to reveal details. IIRC, the first time I saw it was in pictures from the Galileo probe, which flew by the Earth
& Moon a couple of times to build up enough momentum to get to Jupiter. Anyway, Galileo returned some really bizarre false-color images of old Luna
Lunar geologists were able to match the different "colors" with the composition of samples from the Apollo missions; so they could say, "These
samples came from that blue area and are rich in titanium*. These others came from that part with a little bit of "blue" and a lot of "orange" -
they have less titanium and more aluminum." Thus they were able to look at the whole Moon and say, "This wide area is "blue", so it probably has
a lot of titanium. So the whole science of detecting certain elements from a distance without having to go pick them up advanced.
We do the same thing with LANDSAT pictures of Earth.
*I'm picking the elements and corresponding colors randomly - I don't recall the actual correlations.
[edit on 8-4-2010 by Saint Exupery]