A Japanese team led by doctoral student Tatsuya Kotani and professor Tomoharu Oka from Keio University used data from the Atacama Large Millimeter/submillimeter Array (ALMA) to determine the temperature of the cosmic microwave background (CMB) at redshift z = 0.89. They reported a value of 5.13 ± 0.06 kelvin, nearly double the current temperature of 2.7 K. Filling a Gap …
Read More »The Temperature of the Universe 7 Billion Years Ago? We Finally Know—and It’s Wild
