"Alien Life and Intelligence Exists Beyond Our Solar System in Forms We Can't Conceive" --An Interview With Britain's Top Astronomer (WATCH Today's "Galaxy" Stream)

"Aliens could exist in forms we can't conceive," says Martin Rees is Emeritus Professor of Cosmology and Astrophysics, at the University of Cambridge, the Astronomer Royal, a member of Britain's House of Lords, and a former President of the Royal...