PUNCH mission achieves milestone
(PHYSorg.com Space & Earth)

On April 8, 2020, the Polarimeter to UNify the Corona and Heliosphere (PUNCH) mission achieved an important milestone, passing NASA`s critical System Requirements Review/Mission Definition Review (SRR/MDR). Southwest Research Institute is leading PUNCH, a NASA Small Explorer (SMEX) mission that will integrate understanding of the Sun`s corona, the outer atmosphere visible during eclipses, with the tenuous `solar wind` filling the solar system.