Are you instantly on Instagram? A Flickr fanatic? If you know the difference between shutter speed and an f-stop, this NASA Social is for you. NASA is hosting an event for its photo-fanatic social media followers on the morning of Feb. 27, 2014, at NASA's Goddard Space Flight Center in Greenbelt, Md. This NASA Social will bring 15 social media photo-gurus together at NASA Goddard to snap and share photos of where NASA's next great Earth science satellite was developed, built and tested. The Global Precipitation Measurement mission Core Observatory is the largest satellite ever built and tested...