Contents

• OUR UNIVERSE
  • Introduction
  • Expansion and age, and the Big Bang theory
  • Size of the universe and observable universe
  • Shape of the universe
  • Fate of the universe
  • Heavenly Bodies
  • Our Solar System
  • Other Related Words
• PLANETS OF OUR SOLAR SYSTEM
  • MERCURY
  • VENUS
  • EARTH
  • MARS
  • JUPITER
  • SATURN
  • URANUS
  • NEPTUNE
  • PLUTO
  • PICTURES