Researchers propose a new theory for the origin of dark matter, the invisible substance thought to give the universe its shape and structure. Their mathematical models show that dark matter could have ...

Dynamical friction. The panels depict sparse areas of the universe with dark colour and dense areas with light colour. The upper panels show the density around a galaxy if the galaxy's gravity bends ...

Transformative discoveries in cosmology are unfolding at Princeton as researchers explore the universe’s large-scale structure, including galaxies, dark matter, and dark energy. Professor of ...

The Big Bang may not have been the beginning of the universe, according to a theory of cosmology that suggests the universe can “bounce” between phases of contraction and expansion. If that theory is ...

Add Yahoo as a preferred source to see more of our stories on Google. A swirling cluster of tiny orange masses grouped in two blobs. By comparing this new map with what's known as the cosmic microwave ...