Lean back, enjoy ( and watch in HD! ) The song is "Ryan Farish - Full Sail" from the album "Beautiful". A collection of pictures that were taken by the Hubble telescope, they were taken from www.hubblesite.org . The video does include nebulae, galaxies and stars.
--How big is our Universe--
In the visable Universe ( the parts of the universe from where us already reached the light ) there are about 120 billion galaxies. One of them, our milkyway, has estimated 200 billion stars. With that size the question has to be where is other life out there - not is there other life at all.
--Nebulas--
Nebulas are the leavings of a star that ended his life with a super/hypernova. They can be shaped by cosmic radiation and sunwinds.
--Hubble Space Telescope--
Check out the video, its worth it!
http://www.youtube.com/watch?v=SpkrVw_E6Nw&annotation_id=annotation_926191&feature=iv
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