Drawing conclusions
The Mars Express spacecraft has been sending back amazing images of the Red Planet. How does its on-board camera get the picture?
'The camera scans over the planet's surface, then builds up an image from lots of tiny lines. It looks at the surface from different angles, so we can combine these to create a 3-dimensional view.
'By making the image lighter or darker you can see different details but sometimes it makes the colours look a bit weird.'
John Murray, Open University
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