10 facts of space.

1. The sun is a giant star. 2. Venus is the hottest planet in the solar system. 3. Earth's galaxy is called the Milky way. 4. A galaxy is a Massive group of stars. 5. the moon Orbits the sun every 27.3 days. 6. Mars is the second smallest planet in the solar system. 7. Mar's planet is named after the Roman got of war. 8. It takes Neptune 164.8 Earth years to orbit the sun. 9. Saturn is the sixth planet from the sun., 10. The Earth is once believed to be the centre of the universe.