Gamma rays from GRB 221009A caused a disturbance in Earth's ionosphere when they hit our planet and were detected by multiple satellites ...

Three decades of supernova observations are adding to hints that dark energy may be changing over cosmic time.

Earth may owe some of its properties to a nearby star that blew up just as the solar system was forming. This pattern, which saw a supernova bubble envelop the sun and shower it with cosmic rays, may ...