The term 'APOLLO LEM' refers to the Apollo Lunar Excursion Module, a spacecraft used by the United States during the Apollo program of the 1960s and 1970s. The acronym 'LEM' stands for Lunar Excursion Module, and the crossword solutions EAGLE (5 letters), LUNAR (5 letters), and ASTRONAUT (9 letters) all refer to aspects of the Apollo program. The EAGLE was the name of the Apollo 11 LEM that first landed on the moon in 1969, and the LEM was the spacecraft used by the ASTRONAUTS to travel from the Apollo spacecraft to the lunar surface. The ASTRONAUTS who flew the Apollo missions were also known as 'ASTRONAUTS'.