MARS (wheres the color?)
Out of context: Reply #27
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^ Apart from the always interesting conspiracy theories (mostly concocted from observations on Earth, where light refracts differently due to proper qualities of Earth's atmosphere, mostly nitrogen and oxygen), I don't see any reason why Mars should be colourful (given that 95% of its atmosphere is a sullen carbon-dioxide). Also, most of it's landscape is composed of the same materials and since colour -as we know it- is the result from different light absorption of varied surface materials - such as we have on Earth -, Mars colour spectrum is probably very limited compared to ours.
Also, what's the point of having real-colour cameras on Mars, which has a different atmosphere and a different range of materials? Our cameras were created to mimic our notion of colour. Scientifically, short-length radio pictures maybe more helpful to study that particular atmosphere instead of having a range of colours that most probably only apply to Earth and are theoretically useless or even liable to twist the representation of some data.
- why does mars' atmosphere look blue from hubble? also explain how how color photos work on the earth's moonacescence
- color photos work by capturing 3 channels, rgb, it's how those 3 channels are combined that matters. the cameras on phoenix do indeed capture 3 color channelsacescence
- ... phoenix do indeed capture 3 color channels thru filtersacescence
- because you're just looking at it through a pre-conceived camera? if you have a rgb set it's probable the spectrum...********
- translates into rgb, but that doesn't imply it's really blue when you get there. it was a translation of light differences********
- to a specific colour set.********
- blue light waves are 450–495 nm in length. if a sensor sensitive to those frequencies records light, it exists. it's not like they're shifting the spectrum when they take these photosacescence
- ... like they're shifting the spectrum.acescence
- it is so at our distance from the sun. you cannot be sure that it is so elsewhere.********
- if you're reading from a specific location you can't be sure data is not altered by your position, because no matter...********
- ... what kind of capture you have, it will still be in photons when you LOOK at it here.********
- the interpretation occurs in our brain, so yes, blue is the same everywhere in the universeacescence