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 ...

Another clue about the whereabouts of the missing matter in the Universe has just emerged from amid the largest local cosmic ...

"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.

The universe has two kinds of matter. There is invisible dark matter, known only because of its gravitational effects on a ...

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

Astronomers have discovered a huge filament of hot gas bridging four galaxy clusters. At 10 times as massive as our galaxy, the thread could contain some of the universe's 'missing' matter, addressing ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. But the rest of the ...

Harvard & Smithsonian (CfA) and California Institute of Technology, have made a major breakthrough by locating the "missing" ...

Much of the "missing" matter is spread thinly through the space between galaxies, according to the study, which was published June 16 in the journal Nature Astronomy.

The vast majority of matter in the universe is dark-it is entirely invisible and detected only through its gravitational ...