1. When is Nothing Something?

2. How Vast is the Universe?
Hubble’s Telescope

3. Unit 4: Space Exploration
Space Topics:
Sky watching and the Solar System
The nature of the Universe
The history of the Universe
Space research and exploration

5. What 5 planets are most visible from Earth?

6. One main difference between planets and stars
Stars emit their own light
Planets are visible because their surface produces reflective light from the sun

7. Mercury Closest to the sun Smallest planet in the solar system
Similar to our moon; cratered

8. Venus Has no moon Is a little bit smaller than Earth
Is the brightness in the sky after the sun and the moon
Is named after the roman goddess of love and beauty

9. Earth Our planet The only planet known to have life Has one moon
Has salt water oceans, continents, and islands

10. Mars Has 2 moons Often referred as the “Red Planet”
Is named after the roman goddess of War
Has volcanoes, valleys, deserts, and polar ice caps

11. Jupiter The largest in our solar system 2 ½ times all planets combined
Is a Gas Giant planet

12. Saturn Is the 2nd largest in our solar system Is a Gas Giant planet
Has 61 moons!
Is a ringed planet (ring is mostly ice particles, rocky debris, and dust)
Saturday is named after Saturn

13. Uranus 3rd largest planet in our solar system Is a Giant Gas planet
Has 27 moons
Has a ring

14. Neptune Has 8 moons Has a ring
Is a Gas Giant planet (often called Blue Giant)

15. Pluto
Is a dwarf planet