What Causes Gamma-Ray Bursts? Their 'Afterglows' Hold Clues
These high-energy explosions, brighter than billions and billions of suns, have recently been tracked for days, upending ideas about the cataclysms that create them.
These high-energy explosions, brighter than billions and billions of suns, have recently been tracked for days, upending ideas about the cataclysms that create them.