1. Exploring Space

2. Arrangement of Universe

3. Earth o Our planet o Diameter = 13,000 km or 8,000 miles o Orbits the sun

4. Solar System  Contains Earth, 7 other planets, the sun, and other smaller bodies.  Sun is a star  Planets orbit the sun.

5. Milky Way GGalaxy IIt contains our solar system and the stars we can see with our bare eyes. IIt contains millions or billions of stars.

6. Universe  Billions of galaxies  Contains everything in space and all the matter and energy in it.  Milky way is just one of the many billions of galaxies.  Galaxies extend in all directions.

7. Picture in the sky Astronomers have the sky mapped out like a road. The sky is divided into 88 areas named for a constellation.

8. Constellation Group of stars that form a pattern. Greek named many of the constellations for animals and imaginary beings. Stars in constellation are not really close to each other. They seem grouped from Earth, but many of the stars are several light years away from each other. We see different constellation due to Earth rotating on its axis.

10. Polaris  Fairly the brightest star that we see.  It is the star to help locate North.  If the north pole extended into space this would be the star directly up above that point.

11. Satellite  An object that orbits a more massive object.  The moon is considered a satellite.  Ex. International space station.