This event is in the "Everyone" group. Discover Exoplanets: The Search for Alien Earths All Day Everyone This event is in the "Everyone" group. Aug 24 2019 Sat Discover Exoplanets: The Search for Alien Earths All Day Main Library Please note you are looking at an event that has already happened. Library Branch: Jefferson County Library Room: Main Library Age Group: Everyone Program Type: Exoplanets, Science & Math Event Details: The Jefferson County Library is excited to join the WSU Extension in hosting this free exhibit that explores the fascinating world of space and astronomy.