The universe

Do you all know how big is the universe?? here's some video clip that's quite useful in educational...

how big is our earth compare to others
http://youtube.com/watch?v=0cPM9b_aZb0&mode=related&search=

how big is the universe... a trip from our sun to the cluster
http://www.youtube.com/watch?v=BGxRWCmwSDE

this is what the hubble telescope get at the year of 1995
http://www.youtube.com/watch?v=cXGdweTTD4o

a cluster is form by approx 2000 galaxies.. galaxy is form by 10 (+ 22 zero) of sun... what ever information will get inside the video clip... have fun.. (^_^)v