Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
First View of the Lunar Far Side In 1959 the Soviet probe Luna 3 captured this image--the first view ever showing the far side of the moon. Tsiolkovsky Crater is visible as the dark, heart-shaped feature near the lower-right edge. Leningrad Scientific Research Institute of Television / Sternberg Astronomical Institute / curated online by Don P. Mitchell