

On April 18, 1951, a monkey, possibly called Albert V, died due to parachute failure. Alberts, I, II, and IV were rhesus macaques while Albert III was a crab-eating macaque. On December 8, Albert IV, the second mammal in space, flew on the last monkey V-2 flight and died on impact after another parachute failure after reaching 130.6 km. On September 16, 1949, Albert III died below the Kármán line, at 35,000 feet (10.7 km), in an explosion of his V2. His flight reached 134 km (83 mi) – past the Kármán line of 100 km which designates the beginning of space. On June 14, 1949, Albert II survived a sub-orbital V-2 flight into space (but died on impact after a parachute failure) to become the first monkey, first primate, and first mammal in space.

Albert died of suffocation during the flight and may actually have died in the cramped space capsule before launch. The first primate launched was Albert, a rhesus macaque, who on June 11, 1948, rode a subspace flight to over 63 km (39 mi) in Earth's atmosphere on a V-2 rocket. Sam, a rhesus macaque, flew to an altitude of 88 km (55 mi) on December 4, 1959, on a NASA rocket, Little Joe 2
