Tue, 25 November 2014
A powerful burst of energy from a dying star overwhelmed an orbiting observatory scanning for x-Rays and other high-energy radiation. The blast came from a star that died five billion years ago probably on its way to become a black hole. And that burst of energy has been traveling all this time to arrive on Earth June 21, basically the summer solstice.
Direct download: PDF-1155-BRIGHTEST_HIGH-ENERGY_LIGHT_SOURCES_EVER_RECORDED.pdf
Category:general -- posted at: 2:12pm EDT |
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