Planets: The Search for a New World | Space Science | Free Documentary

Not until 2015 was this promising exoplanet tracked down by NASA telescopes. The geophysical characteristics indicate Earth-like temperatures and even water in liquid form is likely. Meanwhile, astrophysicists suspect a solar system similar to ours around each star; discovering more and more Earth-like celestial bodies. Physicist Prof. Dr. Ulrich Walter explains in this episode of Spacetime, the dynamics involved in the search for extraterrestrial life today.