Alok Jha is a science correspondent at the Guardian. In addition to writing news and comment, he presents the Science Weekly podcast. A physics graduate from Imperial College London, he has been at the Guardian since the launch of the science supplement, Life, in 2003. He is also the author of The Doomsday Handbook: 50 Ways to the End of the World and How To Live Forever And 34 Other Really Interesting Uses for Science, both published by Quercus. You can find him on Twitter at @alokjha

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