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Flamsteed Astronomy Society |
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Drawings from the Surface of Mars Dave Redfern — Feb 5, 2007 |
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Mars Approach 2 121 cms x 85 cms © David Redfern |
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Cloud chamber photograph (inverted).
Electrons are ejected from atoms by a beam of X-rays.
Image: Proceedings of the Royal Society A, vol 104, p.1 (1923) |
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Centaurus A galaxy.
The dark shape is a huge cloud of gas and dust in front of the illuminating stars.
Image courtesy: Eric Peng/JHU/NOAO
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Mars Southern Icecap
Image: NASA/JPL |
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