New view of nature’s oldest light adds fresh twist to debate over universe’s age
Thursday, July 16, 2020 - 09:50
in Astronomy & Space
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 […]