Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

Scientists may have finally found the universe’s missing matter - hidden in invisible hydrogen gas far beyond galaxies.

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

A new analysis of the sky has finally confirmed where the missing half of the Universe's visible matter has been hiding.

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s ...

Half of the universe's hydrogen has been missing since the Big Bang 13.8 billion years ago, but scientists reckon they've ...

Explore the fascinating scales of existence, from quantum particles to the observable universe’s edge. A journey into size like no other! White House proposes drastic cuts to State Department ...

"The cosmic microwave background is in the back of everything we see in the universe. It's the edge of the observable universe," Ferraro said. "So you can use that as a backlight to see where the ...