Astronomers have made new measurements of the Hubble Constant, a measure of how quickly the Universe is expanding, by combining data from the Hubble Space Telescope and the James Webb Space Telescope.

Planck's constant is one of the fundamental constants that sets up all the "rules" for how things work in our universe. (It’s named after the theoretical physicist Max Planck, who is best known for ...

A discrepancy between different measurements of the Hubble constant makes scientists question whether something is amiss in our understanding of the universe. Few numbers have gotten under astronomers ...

In 1998, two teams of cosmologists observed dozens of distant supernovas and inferred that they’re racing away from Earth faster and faster all the time. This meant that—contrary to expectations—the ...

Early arrivals: the first four images of the gravitationally lensed supernova are shown in yellow. (Courtesy: NASA/ESA/JHU/UCLA/UC Berkeley/STScI) A study of how light from a distant supernova was ...

One of the most exciting prospects in physics has been discovering that fundamental constants are not actually constant at all. When I first started writing, physicists and astronomers were just ...

Mathematicians attended Roger Apéry’s lecture at a French National Center for Scientific Research conference in June 1978 with a great deal of skepticism. The presentation was entitled “On the ...