The aforementioned models of the cosmos, including the standard model of cosmology, have long posited the idea that the ...

Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, ...

Astronomers have finally tracked down missing "ordinary" matter, which they discovered hiding as gas spread out in the vast ...

Bright flashes of enigmatic radio waves have helped illuminate some of the missing matter in the universe, astronomers say in ...

Scientists estimate that ordinary matter makes up only about 15% of all matter, but have long struggled to document where all ...

There's been a lot of discussion over the years about what the universe is made up of. While some argue that dark matter is ...

"Fast radio bursts shine through the fog of the intergalactic medium, and by precisely measuring how the light slows down, we ...

Learn how scientists found the universe's missing matter hiding in a massive cosmic filament stretching 23.5 million light-years between galaxy clusters.

anything other than dark matter – makes up about 15% of all matter. But half of it has long been missing. Powerful bursts of radio waves emanating from 69 locations in the cosmos have helped ...

Scientists previously had determined the total amount of ordinary matter using a calculation involving light observed that ...

A new study used deep-space radio signals to locate the universe’s missing baryonic matter—most of it hiding in plain sight.