The Man Who Went to the Far Side of the Moon: The Story of Apollo 11 Astronaut Michael Collins
astronauts pilots or members of the crew of a spacecraft
capsule the enclosed front section of a rocket made to carry instruments, astronauts, etc., into space
hatch a trapdoor covering an opening in an aircraft's or ship's deck
horizon line where the earth and sky seem to meet; skyline; You cannot see beyond the horizon.
lunar of or like the moon
module a self-contained unit or system within a larger system, often designed for a particular function
quarantine detention, isolation, an dother measures taken to prevent the spread of infectious disease
In 1969, Michael Collins circled the moon in a command module while two other astronauts made their historic landing. Even though Collins did not get to walk on the moon, he knew that every part of being an astronaut, from seeing the Earth from miles above to eating freeze-dried food from a pouch, was an experience to remember.