Pictures of the Milky Way show billions of stars arranged in a spiral pattern radiating out from the center, with illuminated gas in between. But our eyes can only glimpse the surface of what holds ...

Only 31 percent of the universe is made up of matter, scientists have discovered, with the rest being made up of dark energy. Previous models and observations of the universe have estimated that the ...

A team of astronomers has, for the first time, "weighed" dark matter haloes surrounding actively feeding supermassive black holes in the bright hearts of ancient galaxies. These black hole-powered ...

At the center of every galaxy is a supermassive black hole. Beyond a certain size, these become active, emitting huge amounts of radiation, and are then called quasars. It is thought these are ...

Most people rarely experience the effects of dark matter in ordinary life. However, we live in an environment affected by ...

Scientists have succesfully measured the direct influence of gravity on antimatter for the first time in history by dropping antihydrogen atoms from a magnetic trap, and observing as they annihalated ...

The universe is hiding something. Stars at the outer edges of galaxies whirl around the galactic center far more swiftly than the laws of physics say they should. At even larger scales, galaxy ...