This understanding is a key to solving the mysteries of the formation of jets, the extraction of rotational energy from spinning neutron stars, and the dynamics of shocks in SNRs. Interstellar emission from the Milky Way and a large number of unidentified sources are prominent features of the gamma-ray sky. Variability has long been a powerful method to decipher the workings of objects in the Universe on all scales.
Variability is a central feature of the gamma-ray sky.
Probe dark matter and early Universe. It will be able to locate sources to positional accuracies of 30 arc seconds to 5 arc minutes. Yet, it is a relatively small and inexpensive mission, which will be able to be launched on a Delta II rocket.