Elisa Boera

Astronomers have identified the point where the Universe moved from heating to cooling - 11 billion years ago, when the temperature was an astonishing 13,000 degrees Celsius, hotter than the surface of the Sun.

Astronomers have identified the point where the Universe moved from heating to cooling - 11 billion years ago, when the temperature was an astonishing 13,000 degrees Celsius, hotter than the surface of the Sun.