Astronomers using NASA’s James Webb Space Telescope have produced the most detailed map yet of the universe’s cosmic web, the vast network of dark matter and gas that links galaxies. The map traces structures back to when the universe was roughly one billion years old.
Researchers at the University of California, Riverside led an international team that analyzed more than 164,000 galaxies as part of the COSMOS-Web survey. The findings, published in The Astrophysical Journal, show filaments and voids in far greater detail than earlier Hubble Space Telescope images of the same region.