Somewhere between the galaxy clusters that dot the observable universe, enormous threads of hot, diffuse gas stretch across ...

A new method could improve cosmology research by analyzing supernovae together with the galaxies that host them.

An international team of astronomers has carried out what is believed to be the largest ever cosmological computer simulation, tracking not only dark but also ordinary matter (such as planets, stars ...

We see countless stars and galaxies sparkling in the universe today, but how much matter is actually there? The question is simple enough — its answer, however, is turning out to be quite a ...

Dark energy is a mystery so daunting that it stretches and strains our most robust theories. The universe is expanding, driven by the unknown force that we've named Dark Energy. Dark Energy is also ...

Add Yahoo as a preferred source to see more of our stories on Google. There could be many more satellite galaxies orbiting the Milky Way than previously thought or observed, according to astronomers.

The research team is led by Carnegie Mellon University and includes scientists from the Harvard-Smithsonian Center for Astrophysics and the Max Planck Institute for Astrophysics in Germany. The ...

The simulation hypothesis suggests that advanced civilizations could create detailed “ancestor simulations” of their past — and statistically, that might mean we’re far more likely to be inside one ...

Cosmological simulations of dark matter halos form the backbone of our understanding of large-scale structure in the Universe. By numerically evolving millions to billions of particles under gravity, ...