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From Discovery News Top Stories : Discovery Channel:
 It took 13 billion years to reach Earth, but astronomers have seen
the light of an exploding mega-star that is the most distant object
ever detected, two studies published Thursday reported.
The stunning gamma-ray burst (GRB) was observed by two teams of
researchers in April, and opens a window onto a poorly known period
when the universe was in its infancy.
GRBs are the most violent explosions known to exist, and can be 10 million times more luminous than the brightest of galaxies.
They accompany the catastrophic death of a massive star, and are probably triggered by the collapse of the star's center into a black hole.
Dubbed GRB 090423, the new discovery was first spotted by the NASA satellite Swift.
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