Learn about the search for "second Earth" exoplanets in this 10-minute lecture segment from Chapter 4 of the Kyoto University Public Lecture Series on Physics and the Universe. Assistant Professor Takanori Sasaki from the Department of Astronomy at Kyoto University delivers this engaging talk, recorded on October 15, 2017 at the Kyoto University Clock Tower Centennial Hall. Organized jointly by the Division of Physics and Astronomy at the Graduate School of Science and the Yukawa Institute for Theoretical Physics at Kyoto University, this lecture is part of a comprehensive series exploring our physical universe and the quest to find potentially habitable planets beyond our solar system.