Gravity Assist

By National Aeronautics and Space Administration (NASA)

What's Gravity Assist about?

Dr. Jim Green, NASA's director of planetary science, takes you on a guided tour of the solar system and beyond.

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Gravity Assist: Breaking Ba...


Dana Bolles has worked in many exciting areas of NASA including assuring the safety of experiments and spacecraft going to space, managing environmental programs, and thinking about the possibility of life beyond Earth.

Gravity Assist episodes: