U.S. Manned Space Programs Crossword Puzzle

QUESTIONS LIST: alan shephard : first american in space, endevour : shuttle with the record for the longest spacewalk, apollo : project to send humans to the moon, orbiter : another term for the space shuttle, armstrong : first person to walk on the moon (last name), challenger : space shuttle lost due to a faulty o-ring, glenn : first american to orbit the earth (last name), grissom : the death of this astronaut pushed nasa to improve safety of the apollo program, gemini : what us space program was a stepping stone to the moon?, columbia : the first space shuttle in orbit, ride : the first american female in space (last name), reusable : the shuttle’s solid rocket boosters were designed to be _ .