Newfound diversity in gamma-ray bursts puzzles astronomers

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X-ray image of the gamma-ray burst GRB 060614 taken by the XRT instrument on Swift. The burst glowed in X-ray light for more than a week following the gamma-ray burst. This so-called afterglow gave an accurate position of the burst on the sky and ena ...
X-ray image of the gamma-ray burst GRB 060614 taken by the XRT instrument on Swift. The burst glowed in X-ray light for more than a week following the gamma-ray burst. This so-called "afterglow" gave an accurate position of the burst on the sky and enabled the deep optical observations made by ground-based observatories and the Hubble Space Telescope. Credit: NASA/Swift Team
Two brilliant flashes of light from nearby galaxies are puzzling astronomers and could indicate that gamma-ray bursts, which signal the birth of a black hole, are more diverse than once thought.


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3 hours ago | User rating: not rated yet
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3 hours ago | User rating: not rated yet
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5 hours ago | User rating: not rated yet
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Oct 06, 2008 | User rating: not rated yet
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Lichens function as indicators of nitrogen pollution in forests

Oct 06, 2008 | User rating: not rated yet
Scientists have found lichens can give insight into nitrogen air pollution effects on Sierra Nevada and San Bernardino mountain ecosystems, and protecting them provides safeguards for less sensitive species.
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