-- The Everything Kids' Astronomy BookHow galaxies like the Milky Way were built.Why the sun's surface is 20,000-50,000-degrees Fahrenheit.Why the earth spins and how gravity works.What comets and asteroids are made of and how they affect planets.The truth about the man in the moon.Why Mars is so hot and what those rings around Saturn are.What scientists think about aliens and life in outer space If you want to build a sky-watching kit or change your...