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Dec 11, 2014

Our Special Report, which you can read free online, reviews how India is building on its Mars success story

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Welcome to quantum gravity

Quantum theory and general relativity will only be unified when theory meets experiment

Superstrings

String theory might be a theory of everything - or a theory of nothing

Opinion

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All authors must be responsible

William Gilbert: forgotten genius

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Reviews

Railways and the roots of relativity

Was Einstein partly inspired by the railways?