![Illustration of billiard balls on a cosmic pool table](/sites/default/files/styles/card/public/2024-06/Header_Scaling_up_the_dark_matter_search.jpg?h=8abcec71&itok=RYo_KIuD)
![Margaux Lopez in front of a telescope building.](/sites/default/files/styles/card/public/2023-12/PXL_20230717_221018586.MP-EDIT.jpg?h=efe73ecb&itok=tPKhVWyY)
![A cluster of bright galaxies on a black background.](/sites/default/files/styles/card/public/2023-03/heic1115a-2.jpg?h=133b0946&itok=SKMPEXMG)
One of modern science’s biggest mysteries is dark matter, an invisible form of matter that shapes galaxy rotation and bends rays of light. No one knows what dark matter is, but scientists are carrying out a number of experiments to learn more.
Related links:
Physics of the universe
Astrophysics and cosmology