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Published online 12 March 2008 | Nature 452, 142-145 (2008) | doi:10.1038/452142a

News Feature

Astronomy: Eyes as big as the sky

Three teams are racing each other to build the next generation of telescopes that would dramatically dwarf the largest on Earth today. Eric Hand checks out the competition.

Buddy Martin gets nervous before setting foot on the glass. He reaches into his pockets and sets aside a mobile phone, coins and fingernail clippers.

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