Sun-Earth Days 2014

National Aeronautics and Space Administration

Goddard Space Flight Center

Sun-Earth Days 2014

Friday - Planetary Scientists

Monday - Mercury

Monday - Mercury

Get ready to watch the transit of Mercury across the sun. Rediscover what MESSENGER found.

Tuesday - Mercury Transit

Tuesday - Mercury Transit

Find out more about observing and photographing the May 9, 2016 Mercury transit.

Wednesday - Mars at Opposition

Wednesday - Mars at Opposition

In the depths of the dark, frigid outer solar system, sub surface oceans have been confirmed within many of the moons of...

Thursday - Mars Observing Campaign

Thursday - Mars Observing Campaign

Find out more about observing and photographing the May 22, 2016 Mars Opposition.


Find out on Friday, May 6 @ 12 pm Eastern Daylight Time Ask YOUR questions via #NASASWW on Twitter or Facebook

Scientist Affiliation Experitse
Dr. Nancy L. Chabot APL Mercury
Dr. Rosemary M. Killen GSFC Mercury
Dr. Sabrina Savage MSFC Mercury Transit
Dr. Aaron Clevenson Lone Star College Mercury Transit, Mars Observing Campaign
Lou Mayo GSFC/ADNET Mercury Transit, Mars Observing Campaign
Dr. Gina DiBraccio GSFC Mars at Opposition
Dr. Christopher P. McKay AMES Mars at Opposition
Dr. Glyn A. Collinson GSFC Mars at Opposition

Our Planetary Scientists