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New view of old light adds twist to debate over universe's age
by Thomas Sumner
Simmons Foundation Translate This Article
15 July 2020
On 15 July 2020 Simmons Foundation reported:
From a mountain high in Chile's Atacama Desert, astronomers with the National Science Foundation's Atacama Cosmology Telescope (ACT) have taken a fresh look at the oldest light in the universe. Their new observations plus a bit of cosmic geometry suggest that the universe is 13.77 billion years old, give or take 40 million years. The new estimate matches the one provided by the standard model of the universe and measurements of the same light made by the Planck satellite.
Global Good News service views this news as a sign of rising positivity in the field of science, documenting the growth of life-supporting, evolutionary trends.
'Now we've come up with an answer where Planck and ACT agree,' says Aiola, a researcher at the Flatiron Institute's Center for Computational Astrophysics in New York City. 'It speaks to the fact that these difficult measurements are reliable.'
The age of the universe also reveals how fast the cosmos is expanding, a number quantified by the Hubble constant.
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