A Violent History of Time

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Artists concept: A gamma-ray burst destroys a star. Credit: NASASkyWorks Digital
Artist's concept: A gamma-ray burst destroys a star. Credit: NASA/SkyWorks Digital

From mother Earth, the night sky can look peaceful and unchanging, but the universe as seen in gamma-rays is a place of sudden and chaotic violence. Using gamma-ray telescopes, astronomers witness short but tremendously intense explosions called gamma-ray bursts, and there is nothing more powerful.


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All News summaries for January 24, 2008

Wolverine advocates give notice of intent to sue

5 hours ago | User rating: not rated yet
(AP) -- Nine environmental groups said Tuesday they plan to sue the federal government if wolverines aren't granted protection under the Endangered Species Act within 60 days.

Polar bear harassment by oil companies challenged

5 hours ago | User rating: not rated yet
(AP) -- Two conservation groups filed a lawsuit on Tuesday challenging the Bush administration's decision to let oil companies unintentionally harass or harm polar bears and walruses off the northwestern ...

Developing economies don't back G-8 climate goal

5 hours ago | User rating: not rated yet
(AP) -- A joint gathering of major developed and developing nations on Wednesday agreed that climate change was "one of the great global challenges of our time" and pledged to back a United Nations effort ...

Satellite view of cloud tops might warn of storms brewing

Jul 08, 2008 | User rating: not rated yet
For three years a new way to use data collected by NOAA weather satellites has been giving North Alabama short-term warnings of "pop-up" thunderstorms.

Station Crew Prepares for Thursday Spacewalk

Jul 08, 2008 | User rating: not rated yet
The Expedition 17 crew of the International Space Station worked Tuesday towards completing preparations for a pair of spacewalks. They donned their spacesuits for a dry run and inspected hatch seals.
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