Editor's choice
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'Rotating moon' filmed by Nasa
Video (30 sec) Nasa video footage shows what the moon would look like as it rotates. The images are impossible to witness from Earth
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Nasa's Mars Curiosity rover finds no sign of methane, the gas linked to life
Results appear to contradict previous studies that claimed to have found traces of methane emanating from surface of planet
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Stephen Hawking's big ideas ... made simple
Video (2min 44sec) Stephen Hawking's big bang theory and the creation of the universe explained in two and a half minutes
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Hawking – review
It's understandable that this documentary doesn't try and break down Stephen Hawking's theories, but it could have pressed its subject a bit harder, says Peter Bradshaw
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'Working with Stephen Hawking is never dull'
Carers and friends share impressions of eminent physicist at premiere of biopic in Cambridge
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Astronomy Photographer of the Year 2013 – winning pictures
Gallery (17 pictures) Australian photographer Mark Gee has beaten more than a thousand amateur and professional photographers to win the coveted title
