Astrophysics faces a paradox: several independent measurements of the speed at which the cosmos is growing do not agree. This ...

New measurements have shown that the universe is more transparent to high-energy radiation than previously assumed. These measurements of high-energy gamma radiation from 5.3 billion light years away ...

*This image ...

The James Webb Space Telescope has spied some ancient, faint galaxies in far-off corners of the cosmos, but that's nothing compared to the barely-there points of light it identified in a new study. An ...

Two papers published by an assistant professor at the University of California, Riverside and several collaborators explain why the universe has enough energy to become transparent. The study led by ...

Neutral atoms were formed just a few hundred thousand years after the Big Bang. The very first stars began ionizing those atoms once again, but it took hundreds of millions of years of forming stars ...

THE universe is far more transparent at high energies than we thought. This discovery – based on sightings of unexpectedly bright objects that should be too far away to see so clearly – may call into ...

The rest of the universe would be hidden from us if it weren't for this transparency, and now Webb has revealed how it happened! This image captured by the James Webb Space Telescope contains roughly ...