A study by Dartmouth researchers proposes a new theory about the origin of dark matter, the mysterious and invisible ...

Galactic megacollision: A visible-light and X-ray composite image of the Bullet cluster 1E 0657-556, which formed after the ...

Researchers put a portable antimatter containment system through its paces at CERN — plus, the maths of a black hole fly-by.

Dark matter, though invisible, weighs heavily on how we understand the universe. Its gravity sculpts galaxies, holds clusters ...

By examining the underlying structure of matter in the universe, the project aims to learn more about the nature of dark energy. In the animation above, Earth is at the center and bluer points ...

Everything we visualize about space, including stars, planets, gases, and even galaxies, make up just a small fraction of the ...