IF it is actually even possible to move stars and an alien race (whether biological or AI) is advanced enough to do this, just imagine how much they would know compared to us. via Unexplained-Mysteries: A new theory suggests that an intelligent alien civilization may try to collect and store stars for energy. According to senior scientist Dan Hooper from the Fermi National Accelerator Laboratory in Illinois, sufficiently advanced extraterrestrials may take steps to acquire stars in response to the accelerating expansion of the universe which, over a very long period of time, threatens to push all the stars and galaxies so far apart that it will no longer be possible to travel between them. One option would be to build a structure ( such as a Dyson Sphere ) around a star and harness its energy that way, however this method is only likely to work for so long. Eventually, all the remaining stars will simply be too far away to be of use. As such, Hooper argues, an advanced extraterrestrial