Description This artists concept depicts the proposed design for NASAs PRobe far-Infrared Mission for Astrophysics (PRIMA), which wasselected by the agencyin September 2026. The PRIMA observatory is the first in anew classof NASA astrophysics missions, called Probe Explorers, within the agencys longstanding Explorers Program. By observing far-infrared light, PRIMA will enable scientists to study cosmic []