Discovery of the TRAPPIST-1 solar system in 2015 was a game-changer; its red dwarf star is surrounded by seven Earth-sized planets, making it a first-of-its-kind find. Battle of the Exoplanets examines this unusual system and asks what progress has been made in the search for life onother planets.

Originally released by BBC, 2019. Streaming video file encoded with permission for digital streaming by Infobase on May 22, 2019.

Introduction: Battle of the Exoplanets (2:20); --How to Find Exoplanets (3:19); -- Not That Type of Trappist (2:42); -- Groundbreaking Find (6:47); -- Imagining TRAPPIST-1 (4:17); -- Danger Zone (3:37); -- Temperate Zone (2:59); -- Frigid Zone (3:55); -- Harmonious Planets (6:07); -- Possible Life in TRAPPIST-1 System (4:51); -- Cause for Hope (4:33); -- Future Search for Life (6:00); -- Credits: Battle of the Exoplanets (0:32);.