Suppose the birth of the universe was not a definite start, but a cosmological rebound far within a black hole? This radical idea has been picking up steam as new theoretical research, spearheaded by ...

These dramatic events happened when giant black holes tore apart massive stars. The explosions were so intense that they released more energy than 100 supernovae, which are already among the brightest ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...