No one knows what dark matter is made of ... This effect can be seen most dramatically in the so-called Bullet Cluster, a ...
Giant filaments crisscross the universe, connecting galaxy clusters like superhighways between cities. Their shape and ...
Dark matter is one of the great mysteries of the Universe. We don't know what it is; nor can we detect it directly. But there is, somehow, more gravity out there in the cosmos than we expect there ...
This Hubble Space Telescope composite image shows a ghostly 'ring' of dark matter in the galaxy cluster ZwCl0024+1652. The ring-like structure is evident in the blue map of the cluster's dark ...
How do you weigh one of the largest objects in the entire universe? Very carefully, according to new research.
Stars within the cluster closest to the Sun have been disappearing. The European Space Agency (ESA) believes this may be due to the elusive dark matter subhalos. Scientists believe these subhalos ...