1. The ancient Greeks CALLED the Sun Helios

2. Look! 50 aliens ARE COMING out of the spaceship.

3. Robots ARE EXPLORING Mars now to find information.

4. William Hershel DISCOVERED Uranus in 1781.

5. The astronauts ARE LEAVING for the Moon tomorrow.

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