The term 'EARLY ASTRONAUT' refers to two individuals who were among the first to venture into space. The first is CHIMP, which stands for Chimpanzee, a species of ape that was sent into space in 1961 as part of the U.S. space program. The second is GLENN, which stands for John Glenn, an American astronaut who became the first American to orbit the Earth in 1962. Both of these individuals were pioneers in the field of space exploration and helped to pave the way for future astronauts.