A team from Vienna and Frankfurt has found a formula describing a strange phenomenon: Space and time can form a kind of "crystal" that may turn into a black hole. The results are described in Physical ...

Even if it is impossible to travel in time, there might be more hope for sending messages backwards, a new paper argues, ...

Scientists have developed a new technique that could turn black hole collisions into cosmic detectors for dark matter, ...

Black holes are among the most extreme objects in the universe, and now scientists can model them more accurately than ever before. By combining Einstein’s gravity with realistic behavior of light and ...