What is a galaflop?

How fast does a space shuttle travel in space in miles per hour? What is the plural for spacecraft? How many palanets have a mass that is greater than the mass of earth? Why rainbow can be seen at daytime? How big is Perseus constellation? The distance from Earth to the moon is about 3.8 x 108 m A beam of light is sent to the moon and after it reflects returns to Earth How long did it take to make the round trip? Why is the existence of hot Jupiters puzzling? What are the 4 characteristics positions of the earth? What made the tornado funnel appear pink to? Was neil Armstrong the commander of the team? Why can't humans go to Mars? What are the people who research space called? How long would you have if the sun burned out? How far is the satellite Apollo in space? How much more light does the sun give off than an object with thte least apparent magnitude that can be viewed by the naked eye? Is a mirror a source of light? How do the townspeople first react to the appearance of the mars cylinder? What light waves can be seen by the human eye? Why do photons, despite having no mass, still experience the effects of gravity? Is a day on Mars longer than a year on Mars?