A look at the growing fossil fuel divestment movement.
Guest Host: Susan Page
A recently released study shows new evidence that Mars may have supported life at one time. Two scientists talk about recent findings in astrobiology, a discipline that brings together astronomy, biology, geology, genomics, ecology, chemistry, zoology, and paleontology.
- Baruch Blumberg director of the NASA Institute of Astrobiology
- Richard Berendzen professor of physics at American University
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