Speaking at an international forum dedicated to the search for extraterrestrial life, Finkelstein said 10 percent of the known planets circling SUNS in the galaxy resemble Earth.

Professor Andrei Finkelstein said that ten percent of the known planets circling SUNS in the galaxy resemble Earth, and if water can be found on them, then so can life.

Now, four centuries later, we know that the Earth is a small planet circling a minor sun on the edge of just one of an estimated 125 billion galaxies.