On a clear night, the Milky Way and the Andromeda galaxy look like close neighbors. In space, they really are.

For nearly a century, astronomers have known that the universe is expanding. Most galaxies are carried outward with the flow ...

The group of Prof. Habouzit has strong theoretical expertise in the formation and evolution of galaxies and their massive black holes (MBHs), as well as advanced simulation modeling.

A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding ...

Few scientific ideas have leapt from philosophy seminars to dinner-table debates as quickly as the claim that our universe might be an artificial construct. The simulation hypothesis promises a ...

Computer simulations carried out by astronomers from the University of Groningen in collaboration with researchers from Germany, France and Sweden show that most of the (dark) matter beyond the Local ...

A sheet of dark matter lying beyond the boundary of the Local Group is responsible for this.

A new simulation tool lets scientists explore whether self-interacting dark matter could reshape galaxies from the inside out.

The discovery reinforces established theories about space. There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to astronomers. As many as ...

The solution to a persistent astronomical question that has puzzled scientists for half a century has emerged not from direct observation, but from the computing power of sophisticated computer ...

"We studied the last several orbits before the merger, when the entwined magnetic fields undergo rapid and dramatic changes, ...