NASA's Goddard Space Flight Center in Greenbelt, Md., is opening its Visitor Center to the public for a family-friendly activity-filled Global Precipitation Measurement launch party from noon to 3 p.m. EST Feb. 27, 2014. We will watch a live NASA Television broadcast of the launch of the GPM Core Observatory from Tanegashima Space Center in Japan. We will have expert presentations and family-friendly, hands-on demonstrations. The launch of the GPM Core Observatory is scheduled for no earlier than 1:07 p.m. EST. GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency, and...