CAMBRIDGE, MA—NASA’s Parker Solar Probe is on its way for a rendezvous with the Sun. A rocket, carrying the spacecraft, lifted off at 3:31 a.m. EDT, on August 12, from Space Launch Complex 37 on Cape Canaveral Air Force Station in Florida, its engines blazing golden in the clear night sky during ascent. The Parker Solar Probe is humanity’s first-ever mission into a part of the Sun’s atmosphere called the corona. Here it will directly explore solar processes that are key to understanding and forecasting space weather events that can impact life on Earth. The Parker Solar Probe will enter the sun’s corona to understand space weather using a Faraday cup developed by the Smithsonian Astrophysical Observatory and detector electronics by Draper.