Guests

Dr. Linda Spilker is a NASA research scientist at the Jet Propulsion Laboratory in Pasadena, CA. She is currently the Cassini Project Scientist and a Co-Investigator on the Cassini Composite Infrared Spectrometer team and has worked on Cassini since 1988. Since joining JPL in 1977 she has worked...

Dr. Patrick Collins is a well-known and respected authority on space economics, space tourism, reusable launch vehicles, and space solar power. He is a professor of economics at Azabu University in Japan and adviser to a number of companies and organizations. The focus of Dr. Collins' research...

Honorary Research Fellow, Buckingham Centre for AstrobiologyBarry E. DiGregorio’s scientific interests include the study of the geology, geomicrobiology and history of the Great Lakes region in the United States and Canada. Barry also studies ichnology – a...

Michael Listner is an attorney and the founder and principal of Space Law and Policy Solutions, a think tank and consultation firm that concentrates on legal and policy matters relating to outer space security, industry and development. Michael holds a Bachelor of Science (B.S.) in Computer...

A native of Baltimore, Maryland, Gilbert V. Levin graduated from Forest Park High School and entered the Johns Hopkins University School of Engineering in 1941. In 1944, during World War II, in his junior year, he joined the U.S. Maritime Service, where he trained as a shipboard radio operator....

Robert Zimmerman is a well known and respected space historian and author. He posts regularly at his website, http://behindtheblack.com, on space, science, and other matters relating to cultural and political issues. Mr. Zimmerman is also an award winning...

Dr. Linda Spilker is a NASA research scientist at the Jet Propulsion Laboratory in Pasadena, CA. She is currently the Cassini Project Scientist and a Co-Investigator on the Cassini Composite Infrared Spectrometer team and has worked on Cassini since 1988. Since joining JPL in 1977 she has worked...

Mike has been a writer at Space.com since 2010. Before becoming a journalist, he worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in...

John is a veteran novelist, author of seven political romances as well as a short history of the Republican Party. Born in Bryn Mawr, Pennsylvania, in 1948, John attended Lower Merion High School and Princeton University. In 1976 he was graduated from Union Theological Seminary. John is married...

Pete Worden, Executive Director, Breakthrough Starshot; former Director of NASA Ames Research Center

Prior to joining the Breakthrough Prize Foundation, Dr. Worden was Director of NASA’s Ames Research Center. He was research professor of astronomy at the University of...

Ms. Hynes serves as the Director of the New Mexico Space Grant Consortium (NMSGC), NASA Experimental Program for Competitive Research (EPSCoR), and AIAA Associate Fellow. In her role as NMSGC Director, she became involved in development of Spaceport America and commercial space programs in 1991...

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