http://youtu.be/MDrY4g522q8?hd=1

http://youtu.be/qhaQ_f_5Z5k?hd=1

The Centre of a Galaxy "Supermassive Black Hole in the Heart of a Galaxy" (Quasars)

Superclusters of Galaxies. The Great Sloan Wall (Cosmic web)

http://youtu.be/xu2-9omdXNc?hd=1

Part 2

Part 1

http://youtu.be/Q4NlqIEopg8?hd=1

http://youtu.be/I7E8m7kDmc4

nos encanta soñar. we love dreaming