So much space, so little time: why aliens haven’t found us yet
January 19, 2007 | Source: The Guardian
Rasmus Bjork, a physicist at the Niels Bohr institute, believes he may have solved the Fermi paradox.
Using a computer simulation of our own galaxy, he found that even if the alien ships could hurtle through space at a tenth of the speed of light, it would take 10 billion years to explore just 4 percent of the galaxy.