Word: darkeness
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What makes Mileura and the other projects so powerful is that by tuning the receivers to different radio frequencies, they will be able to pick up signals broadcast by hydrogen atoms at different periods in the Dark Ages. When you map cosmic hydrogen at, say, 50 million years after the Big Bangbefore the first stars had a chance to formthen at 100 million, 200 million or half a billion years later, you get a series of snapshots. Combine them, says Loeb, and "you'll be able to make a 3-D picture of hydrogen gas as the universe evolves...
Billions of years since the start of the universe 0 Gravity slows the expansion of the universe 1 2 3 4 5 6 Dark energy speeds the expansion of the universe...
...given theorists the first hard evidence--of that unimaginably distant time when the cosmos left infancy behind and entered the formative childhood that led, eventually, to our sun and the tiny blue planet that circles it. [This article contains a complex diagram. Please see hardcopy of magazine.] Illuminating a Dark Age How the universe grew from a murky soup to twinkling galaxies Looking for the beginning of time...
...beginning . . . Half a million years after the Big Bang, the cosmos went dark. Two hundred million years later, baby galaxies began to shine. What happened in between laid the foundations for the modern universe...
Inside the Dark...