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Telescope captures first light of universe
Thursday March 28, 2013 08:44:51 AM,
EFE
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Paris: The
Planck space telescope has captured an image of the residual glow
from the Big Bang, the European Space Agency reported Thursday.
This is an image with more detail than has ever been captured
before of the cosmic microwave background radiation, which
originated about 380,000 years after the Big Bang, the explosion
amid which the universe began 13.8 billion years ago.
"For cosmologists, this map is a goldmine of information," George
Efstathiou, director of the Kavli Institute for Cosmology at the
University of Cambridge and one of Planck's lead researchers, said
of the data.
This first light, which has been traveling through space for some
13.4 billion years and cooling the entire time, now has a
temperature of just 2.7 degrees Kelvin (minus 273 C).
Nevertheless, the light shows very tiny fluctuations in its
density corresponding to the "seeds" from which stars and galaxies
later formed.
The unique photograph was obtained after processing data obtained
over the past 2 1/2 years by the Planck telescope launched in May
2009 aboard an Ariane 5 rocket from French Guiana to map the
cosmos and analyze its origins.
The telescope is positioned at a location in space known as the
Earth/Sun L2 Lagrange point some 1.5 million km from Earth.
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