RT @NASA: Caught between the sun & our Solar Dynamics Observatory.. the moon. go.nasa.gov/1l7TcIV @NASASunEarth http://t.co/A1VdpN65gO
RT @NASA: Caught between the sun & our Solar Dynamics Observatory.. the moon. go.nasa.gov/1l7TcIV @NASASunEarth http://t.co/A1VdpN65gO