Are there really UFOs? --Is it true that there's no gravity in space? -- Do astronauts really wear diapers in space? -- Are the sun and the moon the same size? -- Is it true that astronauts become weaker in space? -- Is there really an alien face on Mars? -- Is there life on other planets? -- Does the moon really rotate on its axis? -- Does NASA have a weightless training room? -- Is it true that astronauts eat freeze-dried ice cream in space? -- Is it true that the moon has a dark side? -- Does Earth's shadow really cause the phases of the moon? -- Did astronauts really land on the moon? -- Does the sun burn fuel to make heat and light? -- Is it true that the north star never moves from its place in the sky? -- Is there sound in space? -- Is it true that the moon is made of green cheese?