NASA’s Gamma-ray Large Area Telescope successfully launched aboard a Delta II rocket June 11. The spacecraft will study the highest-energy form of light, helping scientists to answer questions about supermassive black hole systems, pulsars and the origin of cosmic rays. GLAST is a powerful space observatory that will explore the most extreme environments in the universe, and search for signs of new laws of physics and what composes the mysterious dark matter, explain how black holes accelerate immense jets of material to nearly light speed, and help crack the mysteries of the staggeringly powerful explosions known as gamma-ray bursts.