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2015 Isaac Asimov Memorial Debate


Watch live! 

Neil deGrasse Tyson hosts and moderates a panel of experts for a lively discussion about the past, present, and future of water on Earth on Tuesday, April 28, at 7 pm, at

Earth is the only place in our solar system with liquid water on its surface. Even though water makes up only 0.03 percent of the Earth’s total mass, it covers 70 percent of the planet’s surface. Where did this water come from? Why is it mostly in liquid form? How much of it is drinkable and how vulnerable is this valuable resource? Will we ever run out? Will wars of the future be fought over access to it? Will future generations harness water from space? Is water essential to all life in the universe—or just to life on Earth?

2015 Asimov Panelists include:

Heidi Hammel 
Planetary Astronomer
Executive Vice President of the Association of Universities for Research in Astronomy

Tess Russo 
Assistant Professor in the Department of Geosciences at Pennsylvania State University 

Ellen Stofan 
Planetary Geologist
Chief Scientist of NASA

Kathryn Sullivan
Under Secretary of Commerce for Oceans and Atmosphere and National Oceanographic and Atmospheric Administration Administrator

Charles Wald 
General, U.S. Air Force, Retired
Director and Senior Advisor to the aerospace and defense industry for Deloitte LLP

The late Dr. Isaac Asimov, one of the most prolific and influential authors of our time, was a dear friend and supporter of the American Museum of Natural History.  In his memory, the Hayden Planetarium is honored to host the annual Isaac Asimov Memorial Debate — generously endowed by relatives, friends, and admirers of Isaac Asimov and his work — bringing the finest minds in the world to the Museum each year to debate pressing questions on the frontier of scientific discovery.  Proceeds from ticket sales of the Isaac Asimov Memorial Debates benefit the scientific and educational programs of the Hayden Planetarium.

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