1. NASA's hot radiation mission
On 24 August, NASA blasted twin satellites successfully into the radiation belts that surround Earth. The Radiation Belt Storm Probes (RBSP) will let researchers finally begin to unlock the mysteries of the Van Allen radiation belts, two doughnut-shaped rings around the Earth made up of very high-energy electrons and protons that can damage satellites and endanger humans during spaceflight, NASA says. Here's what the mission looks like.