Program Archives

THE CAVES OF MARS AND THE GEYSERS OF ENCELADUS
November 23, 2009
Guests: Emily Lakdawalla, Glen Cushing
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Emily Lakdawalla tells us about the amazing images of Enceladus just taken by the Cassini spacecraft. You have to see them to believe them. Then Glen Cushing of the US Geological Survey talks about...  more »

ARE THERE GIANT CAVES ON MARS?
June 18, 2007
Guests: Glen Cushing, Wendy Jaeger, Tim Titus
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Their discoverers call them the seven sisters. Are these holes in Mars merely very deep pits, or are they skylights opening on huge caves? Glen Cushing, Windy Jaeger, and Tim Titus of the United...  more »