our solar system

• within our solar system, there is one star, the sun, plus the eight planets and dwarf planets that orbit around the Sun
• natural satellites, the moons that orbit planets, are also part of the solar system
• our solar system is a small part of the Milky Way galaxy
• an asteroid is an object made up of rock and metal and comets are made up of ice and dust
• speed of light is 3 X 10 to the power of 8 m/s