What is magnetisphere?

What is the objective of kaleidoscope? When all light is reflected back all light is said to be? What do you call a person who goes to space? How much gas does the sun burn each second? Are the Apollo 13 astronauts still alive? Why did Apollo 13 not land on the moon? What is average day and night time temperature on Mars hi? What is a sentence using the word marveling? What happens if an universe gets destroyed? Who is the most two famous scientists? Did astronauts wear g-suits when they landed on the moon? What was the velocity of apollo 13 as it fell back to earth? What elements make up the astnosphere? What is the object used to reflect the light of the sun? Earth moves through space in two major ways rotation and revolution explain how this happens? What is the mass of Saturn the planet? What two colors make the color of moon? When is the density of a hot air balloon the greatest? What is lunno? What 2 things keep something in orbit around the earth?