Aliens The Big Think. Word Search Puzzle Solver. Aliens The Big Think word Search Puzzle Game. Find words related to movie actors, actresses, and genres. Word Search Puzzle Solver. The hunt for aliens is on! After a distinguished career in cosmology Professor Martin Rees the astronomer royal has taken up the search for extra-terrestrials. Looking for aliens is no longer science fiction - it is a question that's engaging some of the greatest minds in science. As our knowledge of the universe has increased we're getting closer to answers. Many scientists now think we live in galaxy with a billion Earth-like planets many of which may be teeming with life. But what kind of life? Has anything evolved into beings we could communicate with? This film gets inside the minds of the scientists considering one of the most exciting and profound questions we can ask - are we alone in the universe? Professor Rees thinks we may have our idea of what an alien is like all wrong. If he's right it's not organic extra-terrestrials we should look for it's machines. This includes identifying and searching for words that are related to : Documentary, Martin Rees .