posted on Jan, 5 2008 @ 10:29 AM
This is what happens when people start to see a movie near the end and don't understand half of what they are seeing, so they start creating their
NASA has published photos of Mars with blue skies, clouds and even an aurora has been found by ESA's Mars Express, the fact that someone never saw
them does not make them into a NASA secret that slipped up a hypothetical black-out of photos showing these things.
Anyone that really
wants to deny their ignorance about those rover's photos should learn how those photos are taken.
Photos from the panoramic camera that use the L4, L5 and L6 filters (that correspond to the Red, Green and Blue colours) can be combined to create a
near true colour image and the rovers carry a target with some colour patches to make colour correction. Only with these three filters can we have a
true colour image. It is never true colour because the photos are taken separately, so the brightness is adjusted for each colour and not
for the combination of the three photos, making the image more or less red, green or blue according to the more or less brightness of the red, green
or blue channel.
So, those that do not want to make a fool of themselves should learn something about what they are talking before making statements about things that
Clouds photographed by Pathfinder
Clouds over Endurance crater on Sol 290
Clouds over Endurance crater on Sol 291
Frost on the calibration target
Winter clouds and fog
More winter clouds
Blue sky images made by combining the three images from the red, green and blue filters.