The Hubble tension is one of the most hotly debated discrepancies in all of astronomy. It centers around a number called the ...

Scientists using the James Webb Space Telescope have made a discovery which could overturn our basic assumptions about the universe.

The findings offer a crucial cross-check for previous Hubble Space Telescope measurements of the universe's mysterious ...

Astronomers can't agree how fast our cosmos is expanding. A new James Webb Space Telescope study has made the crisis even ...

The universe’s light-starved early epochs, as well as the first stars and galaxies, lie beyond the reach of conventional ...