Astronomers glimpse cosmic dawn, when the stars switched on
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March 1, 2018
WASHINGTON (AP) — For the first time, astronomers have glimpsed the dawn of the universe 13.6 billion years ago when the earliest stars were just beginning to glow after the Big Bang. And if that's not enough, they may have detected mysterious dark matter at work, too.
The glimpse consisted of a faint radio signal from deep space, picked up by an antenna that is slightly bigger than a refrigerator and costs less than $5 million but in certain ways can go back much farther in time and distance than the celebrated, multibillion-dollar Hubble Space Telescope.
Judd Bowman of Arizona State Universi...
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