Carl Sagan Lecture Series - Introduction to Planetary and Earth Science

Explore the legacy of Carl Sagan and his impact on planetary and Earth science in this 59-minute AGU Sagan Lecture by Compton J. Tucker, a Senior Earth Scientist at NASA Goddard Space Flight Center. Delve into Sagan's vision of planetary exploration, focusing on the living Earth and its relevance to current research directions. Discover how NASA's space science missions have contributed to our understanding of the universe, from the Voyager missions to the concept of the "Pale Blue Dot." Examine key pillars of Earth science, including the Earth's atmosphere, magnetic field, and surface temperature. Investigate critical environmental issues such as carbon dioxide levels, sea level rise, and climate change through data from various NASA missions and experiments. Learn about major scientific accomplishments, including the Hubble Space Telescope and ocean measurements using the Argo float flotilla. Gain insights into potential future directions in planetary and Earth science, including geoengineering considerations.

Introduction
Carl Sagan
NASA Space Science Missions
Why NASA
Voyager 1 Voyager 2
Pale Blue Dog
Earths Atmosphere
Scientific Approach
Pillar of Earth Science
Major Contributions
Earths Magnetic Field
Surface Temperature
Continents
Carbon Dioxide
Carbon Dioxide Data
Total Solar Radiance
Sea Level Rise
Gravity Recovery Climate Experiment
Argo
Hubble Space Telescope
The Pale Blue Dot
What would Carl Sagan view as the big accomplishments
What would Carl Sagan be pleased with
Planetary and Earth Science at NASA
Geoengineering
Ocean measurements
Argo float flotilla
Additional question
Announcements