Mare Crisium is a lunar mare located in the Moon's Crisium basin, just northeast of Mare Tranquillitatis. Mare Crisium is a basin of Nectarian age.
Low-altitude view of southern Mare Crisium from Apollo 11, facing northwest and showing the crater Shapley near center at the edge of the mare, and the distal wall of the crater Greaves near the horizon
Luna 24 was a robotic probe of the Soviet Union's Luna programme. The 24th mission of the Luna series of spacecraft, the mission of the Luna 24 probe was the third Soviet mission to return lunar soil samples from the Moon. The probe landed in Mare Crisium. The mission returned 170.1 g (6.00 oz) of lunar samples to the Earth on 22 August 1976.
Model of ''Luna 24'' Moon lander