This illustration shows how astronomers believe the universe developed from the "Big Bang" 13.7 billion years ago to today. NASA/WMAP Science Team/MCTFrom McClatchy News:
WASHINGTON -- No place seems safe from the prying eyes of inquisitive astronomers.
They've traced the evolution of the universe back to the "Big Bang," the theoretical birth of the cosmos 13.7 billion years ago, but there's still a long stretch of time -- about 800 million years -- that's been hidden from view.
Astronomers call it the Dark Ages, and now they're building huge new radio telescopes with thousands of detectors that they hope will let them peer back into the period, when the first stars and galaxies began turning on their lights.
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