PUNCH spacecraft make final pit stop before launch

Four small suitcase-sized spacecraft, designed and built by Southwest Research Institute, have made a final Earth-side pit stop at Vandenberg Space Force Base in California. NASA's Polarimeter to Unify the Corona and Heliosphere (PUNCH) mission is sharing a ride to space with the Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) observatory.