02/12/2023

A new possible explanation for the Hubble tension

The universe is expanding. How fast it does so is described by the so-called Hubble-Lemaitre constant. But there is a dispute about how big this constant actually is: Different measurement methods provide contradictory values.

US leads call to triple nuclear power at COP28

More than 20 nations including the United States called for a tripling of nuclear energy to drive down emissions on Saturday as world leaders assembled for a second day at UN climate talks in Dubai.