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Distant Stellar Explosion Helps Map Universe's Dark Ages 61

Posted by samzenpus
from the in-the-beginning dept.
sciencehabit (1205606) writes "Near the beginning, the universe was without form and void, and darkness was upon the face of the deep. That's because until about a billion years after the big bang, there were no galaxies or stars to illuminate the heavens, which were then filled primarily with neutral hydrogen gas. But a rare ultra–high-energy stellar explosion called a gamma ray burst has offered a new glimpse into this obscure period—the so-called cosmic dark ages—and may help nail down precisely when it ended. A new study of the explosion's afterglow suggests that such neutral hydrogen abounded a billion years after the big bang, so the dark ages weren't quite over then."
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Distant Stellar Explosion Helps Map Universe's Dark Ages

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  • by mark-t (151149) <markt@@@lynx...bc...ca> on Monday May 05, 2014 @08:16AM (#46918363) Journal
    If the universe is 13.8 billion years old, and the universe went through a dark period that was supposedly a billion years long, then why can we detect objects that are as far as 13.3 billion light years away? Shouldn't everything past about 12.8 billion light years be.... well... dark?
  • by Anonymous Coward on Monday May 05, 2014 @08:38AM (#46918509)

    Entry level workers get a job at McDonald’s at 25 smackers an hour to start working.

    Trade school trained mechanic, after a few years in the field, is earning that or not much more. Not only does his hamburger shoot up to about 10-12 dollars for a combo, all costs for everything slowly rise like boats in a harbor with the incoming tide. He asks his boss for a raise, because he deserves more pay than some entry level laborer, and the cost of his companies business goes up. And now, the 25 dollar an hour worker at McDonalds is paying more to Mr. Trade School Mechanic to get their car worked on.

Be careful when a loop exits to the same place from side and bottom.

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