Journey to the edge of the Universe
Would you like to know how big is the Universe? This National Geographic video will take you into an incredible and astonishing journey to what is supposed to be our Universe's edge. You will see how the stars and planets work, what is a black hole, how quasars and pulsars look like and many things that will really surprise you.
Are you prepared?
http://www.youtube.com/watch?v=gcf3_EBpSSo
Andreu Orós
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