Carl Sagan Talks About Mars (1982)

From technology editor Alexis Madrigal:

News of possible liquid salt water on Mars this week has inspired renewed speculation about the Red Planet. In this NASA film from 1982, Sagan describes the earliest evidence of water on Mars -- streambeds apparently carved by running water -- and why those streambeds are now empty. 

The rest of the film can be seen at the Internet Archive.

Kasia Cieplak-Mayr von Baldegg is the executive producer for video at The AtlanticMore

Cieplak-Mayr von Baldegg joined The Atlantic in 2011 to launch its video channel and, in 2013, create its in-house video production department. She leads the development and production of original documentaries, interviews, and other video content for The Atlantic. Previously, she worked as a producer at Al Gore’s Current TV and as a content strategist and documentary producer in San Francisco. She studied filmmaking and digital media at Harvard University.

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