The Fermi-Hart paradox claims that there is a very high probability that detectable extraterrestrial intelligences exist, while also observing that we see no signs of them. This high probability of extraterrestrial intelligences arises from the sheer number of stars in the galaxy. Over the years many proposed solutions to this paradox have been developed. In this thesis I will analyse several of these proposed solutions using currently available evidence and attempt to determine if they provide a satisfactory response to the Fermi-Hart paradox.