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

On Monday, April 16th, NASA is scheduled to l...

: 12-Apr-2018

Hi, I'm Jim Green, NASA's director of planeta...

: 02-Nov-2017

We start our “Gravity Assist” virtual tou...

: 15-Nov-2017

Our virtual tour of the solar system continue...

: 22-Nov-2017

The next stop on our virtual tour is Venus, t...

: 29-Nov-2017

NASA not only seeks to unravel the secrets of...

: 06-Dec-2017

Jim Green is joined by lunar expert Sarah Nob...

: 13-Dec-2017

With Jim Green today is the “man about Mars...

: 20-Dec-2017

As large as 1,000 Earths, Jupiter is the heav...

: 03-Jan-2018

With me today is Dr. Linda Spilker from NASA'...

: 10-Jan-2018