3. The Universe is all that we can know of space and time, it is practically empty with small clusters of matter and energy, and its age remains ambiguous.

4. Virtual universe

5. Milky way

10. Mars

12. Supernova

13. Saturn

14. Uranus

15. Comet

16. Stephen William Hawking known for his contributions to the fields of cosmology and quantum gravity, especially in the context of black holes, and his popular works in which he discusses his own theories and cosmology in general. "Where do we come from? How did the universe begin? Why is the universe the way it is? How will it end?”

17. Black Hole

18. Black Hole Milkyway

19. Comet Hyakutake

20. Gravitational lens

21. GPS Satellite NASA

23. The Cartwheel Galaxy

25. Our neighbor Andromeda M31

26. Crab Nebula

27. Earth and Moon

28. Galaxies in collision; computer generated hologram made of astronomic pictures

30. Flare Region on the Sun

31. http://www.slideshare.net/Raissa_ro Pps created by Raissa Music by Jon & Vangelis -So Long Ago So Long Clear