“Out of the Cosmic Dark Ages” –Earliest Evidence of the First Stars

Cosmic Dark Ages

 

Following the Big Bang a gap of several hundred million years emerged that was filled with darkness– the cosmic dark ages, a time that’s not just absent light, but also devoid of data. Astronomers using the Mayall telescope at Kitt Peak National Observatory, have identified several overlapping bubbles of hydrogen gas ionized by the stars in early galaxies, a mere 680 million years after the Big Bang in these “cosmic dark ages” — when elementary particles, combined to form neutral hydrogen but no stars or galaxies existed yet to light up the Universe.

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Milky Way’s Radio Waves Reflecting Off the Moon –“Unveils Evolution of Early Universe”

 

“Before there were stars and galaxies, the Universe was pretty much just hydrogen, floating around in space,” said Benjamin McKinley at Australia’s Curtin University and the International Centre for Radio Astronomy Research. “Since there are no sources of the optical light visible to our eyes, this early stage of the Universe is known as the ‘cosmic dark ages’.

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