NASA's Swift satellite has detected a violent gamma-ray burst, named GRB 090423, from the collapse of a massive star some 13 billion light-years away, making it the oldest and most distant object ever recorded.
NASA's Swift satellite has detected a violent gamma-ray burst, named GRB 090423, from the collapse of a massive star some 13 billion light-years away, making it the oldest and most distant object ever recorded.
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