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Science 26 March 1999:
Vol. 283. no. 5410, pp. 2003 - 2004
DOI: 10.1126/science.283.5410.2003
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News Focus

ASTRONOMY:
Watching the Universe's Second Biggest Bang

Govert Schilling

On 23 January, astronomers witnessed a cataclysmic event in a distant galaxy, an explosion with an energy second only to that of the big bang itself that spawned the most luminous gamma ray burst (GRB) ever seen. The observations are yielding new clues to the nature of these bursts, which have been a puzzle for decades. The power and visible-light display of GRB 990123 have now made it an astrophysical celebrity, the subject of no fewer than six papers in today's Science and next week's Nature.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)