Beginning in the 1960s, satellite instruments have measured Earth's reflected broadband shortwave radiation and emitted ...

Since their discovery by Wilhelm Roentgen in 1895, X-rays have become a staple of modern medical care, from imaging teeth and ...

Scientists may have found a new way to detect some of the universe's most mysterious objects, primordial black holes (PBHs), ...

One of the most perplexing discoveries in modern astronomy has been finding supermassive black holes, some weighing billions ...