Dark matter's gravity wrinkles space-time, bending light rays as they pass. Such measurements indicate that dark matter could make up 90 percent of the universe's total mass. These days ...

It could mean, for example, that gravity wells have a slower growth rate more recently in the Universe. In addition, measurements of the expansion of space-time suggest that the growth of the ...

Black holes are points in space that are so dense they create deep gravity sinks ... of darkness may have swirled to life soon after the universe formed with the big bang, some 13.7 billion ...

These snapshots reveal that, as forces like gravity have ... to layer cosmic time, akin to stacking ancient cosmic photographs over recent images of the universe, creating a multidimensional ...