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Earth, Sky and Astrobiology
Topic: Missions
Summary: In the 1990s, scientists coined the term "astrobiology" to refer to the study of life in space. On the radio broadcast, Earth and Sky, discover more about this fascinating field from Dr. Bruce Runnegar.

Hitch-Hiker's Guide to Biology's Second Datum
Topic: Missions
Summary: Midway through their marathon 2-week space shuttle experiments, Neil Tyson and David Warmflash explore one of biology's most elusive mysteries: Does life fit a second data point?

Genetic Engineering and Human Intervention: Part III
Topic: Biosphere
Summary: Interview (Part III) with Andrew Knoll, Harvard paleobiologist, about the role of human intervention in shaping the global biosphere: "We just need to recognize that we live in a world where local actions sometimes have large reactions.

Extinctions: Interview with Andrew Knoll Part II
Topic: Meteorites, Comets and Asteroids
Summary: "Progress is a very loaded term for people who study the philosophy of biology," says Harvard's Andrew Knoll. In part II of the interview, find out the role of extinction in evolution. "...the central fact of our planet, as far as biology is concerned, is that it's dynamic ..."

Biodiversity: Interview with Andrew Knoll Part I
Topic: Biosphere
Summary: Harvard's Andrew Knoll, esteemed paleontologist, and Berkeley's Norman Myers, renowned conservation biologist, published a colloquium paper in Proceedings of the National Academy of Sciences last year entitled, "The Biotic Crisis and the Future of Evolution."

Charting Course: Life in the Universe
Topic: Missions
Summary: The National Academy of Sciences report entitled "Life in the Universe" highlights a top ten list of what has been found out so far about answering the big questions.

Five Year Retrospective: Mars Pathfinder
Topic: Mars
Summary: Five years ago today, on September 27, 1997, the Mars Pathfinder lander began to tally up its remarkable mission history. The excitement was non-stop beginning only 3 minutes after landing, when the first signals of success came back to rapt Earth-bound listeners.

Commitment to Life on This Earth
Topic: Climate
Summary: Among other projects, find out about archaeological research for the site of Helike, which is an ancient Greek city destroyed by an earthquake and tsunami in 373 BC.

Cosmic Imperative for Life?
Topic: Origin & Evolution of Life
Summary: Life began on Earth almost as soon as it was possible, almost as soon as the intense early bombardment by asteroids and comets tapered off and a stable environment emerged. Is this evidence for a chemical inevitability for spawning biology?

Swords to Plowshares
Topic: Missions
Summary: Using a converted Russian ICBM missile for a solar sail launch vehicle, Cosmos Studios is embarking on a bold experiment. Read more, from a remarkable interview with Ann Druyan, the widow of renowned scientist Carl Sagan, and astrophysicist Steven Soter to create the famed television series Cosmos.
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