Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

By observing tiny ripples in spacetime called "gravitational waves" that propagate away from colliding black holes, ...

Researchers said on Thursday that they had discovered twin-lobed radio jets they suspect were formed when the universe was ...

When it comes to the public’s ability—and that of policymakers—to know whether Arizona’s program, or the schools and other ...