The NASA gamma-ray spacecraft Fermi may have enabled scientists to "see" dark matter, the universe's most mysterious stuff, ...

Astronomer Fritz Zwicky first proposed dark matter in a 1933 paper describing the Coma Cluster, a collection of ...

Dark matter is invisible. It's all around us. And we have no idea what it is. The universe is so much bigger than what people can see. Visible matter — which makes up the things you can see like the ...

Dark matter may come in multiple particles and weights, similar to the ordinary elements on the periodic table, a new theory suggests. When you purchase through links on our site, we may earn an ...

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The latest hunt for dark matter has come up empty handed so far, but the upside is that physicists can now set the tightest constraints ever on the nature of this mysterious substance. New ...

The experiment on Earth could help scientists understand what dark matter is really made of. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. An ...

Dark matter makes up some 80 percent of the universe’s mass, but whatever it is, astronomers don't exactly know what comprises this substance nor how exactly it behaves. The designers of a prospective ...