An anonymous reader writes "It's fitting, in this 400th anniversary of the astronomical telescope, that the Telescopio Nationale Galileo (TNG) in the Canary Islands would be used to uncover the most distant object ever seen by mankind. The gamma-ray burst from April 23, a powerful explosion from a dying star, was detected by the Swift satellite using on-board gamma-ray and X-ray instruments. A flurry of activity led to the remarkable discovery that the event occurred roughly 630 million years after the Big Bang. This makes GRB 090423 the most distant known event!"
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