A sheet of dark matter lying beyond the boundary of the Local Group is responsible for this.
On a clear night, the Milky Way and the Andromeda galaxy look like close neighbors. In space, they really are.
A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding ...
A flat plane of dark matter beyond the Local Group may explain why nearby galaxies move away from us instead of falling ...
For more than a century, astronomers have watched in astonishment as the Andromeda galaxy ignored the grand flow of cosmic ...
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 ...
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 ...
The trajectories of the Milky Way and Andromeda, as well as those of the LMC and M33, in 50 simulations. Circles indicate the final positions of the Milky Way and Andromeda after 10 billion years, or ...
The distance between the Milky Way and Andromeda in 50 simulations. Just slightly more than half of orbits result in a Milky Way - Andromeda collision within 10 billion years. Sharp features in ...