Guest Benjamin Greenhagen, a planetary scientist at Johns Hopkins University’s Applied Physics Laboratory in Maryland, outlines the lunar surface’s remaining mysteries --- everything from permanently shaded regions at the North and South poles to near and far side impact craters. Greenhagen is the deputy principal investigator of the Diviner Lunar Radiometer instrument onboard NASA’s Lunar Reconnaissance Orbiter (LRO) and is an expert on the geology of the Moon’s surface.
Episode 66 --- The Big Questions About The Cosmos And Our Existence
Episode 65 --- The Future Of Supersonic, Hypersonic and Suborbital Passenger Flight
Episode 64 --- The Long-Forgotten Tragedy Of The Arctic Airship Italia
Episode 63 --- Getting Real About the Social and Psychological Challenges of Long-Term Space Missions
Episode 62 --- The Link Between Ancient Astrochemistry And Life On Earth
Episode 61 --- Could A Snowball Earth Happen Again?
Episode 60 --- Why Our Human Brain Is Undeniably Unique In The Cosmos
Episode 59 --- Einstein’s Little-Appreciated Window Onto Far Flung Exoplanets
Episode 58 --- How The Unsung ‘Moon Buggy’ Saved The Final Three Apollo Missions
Episode 57 --- Why Our Earth Is Still One Of A Kind
Episode 56 --- The Case For Antimatter Propulsion
Episode 55 --- How Ford’s Tri-Motor Airplane Helped Create The Airline Industry of Today.
Episode 54 --- What Nearby Stellar Open Clusters Are Still Teaching Us
Episode 53 --- John Glenn, JFK and the Cold War's New Frontier
Episode 52 --- The Unexpected Origins of Life's Genetic Code
Episode 51 --- Our Sun's Ultimate Endgame
Episode 50 --- How Humans Can Use Bioengineering To Move Off-World
Episode 49 --- The Dangerous Downside of Airliner Automation
Episode 48 --- Mapping Laniakea, Our Home Supercluster Of Galaxies
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