1. The ancient Greeks called the Sun Helios.
2. Look! 50 Aliens came out of the spaceship.
3. Robots explored Mars now to find information.
4. William Herschel discovered Uranus in 1781.
5. The astronauts discovered Uranus in 1781.
6. The moon travels around the earth almost once every month.
7. It was 1969 when Neil Armstrong walked on the Moon.
8.People use telescopes when they want to look at the planets.