posted on May, 15 2013 @ 10:54 AM
I've been stitching some raw Curiosity images
into panoramas and mosaics lately, and decided
to make this view from the famous "self-portrait". It shows the rover's mast with its cameras, the martian landscape, and plenty of sky:
Full-sized image: www.pictureshack.us...
Occasionally, people bring up the topic of the real colours of Mars, alledging that NASA are lying to us about them and that Mars isn't really red. I
think this image gives a good impression of the real colours; it was taken with a digital camera that uses the same type of the bayer filter as
consumer and professional cameras here on Earth. The image is raw, and I haven't done any adjustments to it.
So, what do we see here? Not a dramatic red landscape like some pictures of Mars depict. But neither is Mars green with a blue sky like on Earth.
Instead we see a gentle-light-brown surface and a dust-laden sky. The surface is covered with a thin layer of hematite-rich (Iron oxide) dust, which
gives it the reddish hue. The sky on Mars is similar in appearance to the sky on Earth during a dust storm. Martian colours are often described as
- yellow with orange or brown hues.
By the way, if the martian sky were free of dust, it still wouldn't be blue; the martian atmosphere is so thin, the sky would be almost black, like
it is on Earth when you get to top of stratosphere.