Sears Lecture 2024 Professor Brad Marston 2023 Professor Sara Seager 2022 Professor Heidi Nepf 2020-2021 Program cancelled due to Covid-19 2019 Professor Lydia Bourouiba 2018 Professor John O. Dabiri 2017 Professor Richard Alley 2016 Professor Mimi Koehl 2015 Professor Susan Solomon 2014 Professor Cecilia Bitz 2013 Professor Susan Lozier 2012 Professor Howard Bluestein 2011 Professor Lakshminarayanan Mahadevan 2010 Professor James D. Murray 2009 Dr. Geoff Spedding 2008 Professor Andrew P. Ingersoll 2007 Professor Kerry Emanuel 2006 Professor Greg Dash 2005 Professor Philip L.-F. Liu 2004 Professor Carl Wunsch 2003 Dr. Andrew Woods