It certainly looks like internet will soon be used in space too. In fact, a programme of the United States Department of Defence called Iris will 
put an internet router in space by the start of 2009. This programme will allow voice, video and data communications for US troops using standards developed for the internet. Eventually, Iris could extend the net into space too. Right now data from satellites orbiting in space is beamed to the ground first, and then beamed up again to another satellite. Iris will make it possible for data to flow directly between satellites orbiting in space through the internet in space.
