What is a galaflop?

Who is the meteorologist? Does An HR diagram plots a stars luminosity and surface temperature? Is Mars cold or warm? What is the temperature of Betelgeuse? What is the length of a year on the moon? From whom did europeans learn about the astrolabe? Did neil Armstrong leave empty soda can on moon? How do you use optical in a sentence for kids? Did anyone die in the spacecraft Apollo 13 when it exploded? Who flies a rocket? Where did the space race happen? Who invented the Chinese kite? What is the adjective for astonishment? What lists earth Jupiter the moon and the sun in order from largest to smallest? What is the door on the spacecraft called? Why do rainbows appear after it rains? What are the peak months for tornadoes throughout the US? What does aroraborealis mean? What was the research vessel that observed marine life at the bottom of challenger deep? Would you want to visit the moon why or why not?