Is there anybody out there?
The Universe is indescribably huge. Can it be possible that humanity is the only form of intelligent life that exists in all this immensity? Are we really alone ?
Throughout history there have been reported sightings of creatures from elsewhere. Science fiction novels and films with flying saucers and bizarre looking aliens are part of our general culture. Perhaps the Earth is really only an experiment designed by mice and soon we will all be destroyed to make way for a new interstellar highway!