[Murder.Of.Crows]

Well the possibility of life on other planets has bee proven, but only proven on a single cell level, such as bacteria. The Kepler telescope has identified 54 planets of which are a similar size to Earth and in habitable zones from their suns. However, I find it unlikely that intelligent life exists, that can both travel interstellar distances and have knowledge of Earth. It is possible though and I won't deny it, but somewhat unlikely.