This rare space wallpaper taken on July 19, by NASA's Cassini spacecraft shows Saturn's rings and our planet Earth and its moon in the same frame.

Get ready for a new Roman Empire: A NASA space telescope will detect a staggering wealth of intricate gravitational lenses that could help unlock the mysteries of dark matter.

Dark matter isn’t visible to the human eye, or even telescopes, but there is an ingenious way to map its presence across the universe.

A colossal cluster of galaxies is bending the very fabric of space—and it’s the focus of this week’s breathtaking image from ...

Because it doesn't interreact with light or electromagnetism, dark matter exists to us only through its influence on visible ...

New observations support the idea that hot, diffuse threads of gas called cosmic filaments connect clusters of galaxies ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t account for half—until now.

THE most precise map so far of dark matter in our universe was released last week by an international team of astrophysicists.

The study’s findings indicate a measured dark matter “clumpiness”, also known as S g, of 0.776. While this value agrees with studies involving gravitational lensing and the recent universe, this value ...

It’s one of the oldest problems in the universe: Since matter and antimatter annihilate each other on contact, and both forms of matter existed at the moment of the big bang, why is there a ...