Marcus Chown

@marcuschown

Writer. Books include Tweeting the Universe, We Need to Talk About Kelvin, Quantum Theory Cannot Hurt You & Solar System for iPad

Photos and Videos by @marcuschown

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Neil Armstrong's footprint on the Moon will last ~10 million years before the rain of micrometeorites erases it

Here's the shell of Jimmy the Tortoise, from Florence Nightingale Museum, St Thomas' Hospital, London

with the tiny bottle of hydrogen that is the source of the protons in the Large Hadron Collider

Sad author spots his book in W. H. Smiths (next to Clarkson and Partridge!)

Image of Sun... taken at night, not looking up but down through 8000 miles of rock, not with light but neutrinos

Girl with the dragon tattoo? No, tracks of dust devils whirling across sands of Mars http://tinyurl.com/ckebvy7

At the north pole of Saturn is a hurricane the shape of a hexagon! http://tinyurl.com/casz4xo