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Life At Risk When Star Exploded?
Astrobiology
www.astrobio.net/news/modules.php
Terrestrial Climate History Scientists at NASA and the University of Kansas say that a mass extinction on Earth hundreds of millions of years ago could have been triggered by a star explosion called a gamma-ray burst. The scientists do not have direct evidence that such a burst activated the ancient extinction.
Astrobiology
www.astrobio.net/news/modules.php
Terrestrial Climate History Scientists at NASA and the University of Kansas say that a mass extinction on Earth hundreds of millions of years ago could have been triggered by a star explosion called a gamma-ray burst. The scientists do not have direct evidence that such a burst activated the ancient extinction.
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