Monitoring Earth’s surface from space

Today's Video of the Day from the European Space Agency describes a goal of the ESA Discovery & Preparation program to maximize the benefits of monitoring Earth's surface from above.  Satellite images contain data that cannot be captured from the ground. Scientists are using this data to gain a better understanding of Earth's surface, including the land, ocean, and ice caps, in an effort to monitor the changing environment and support responses to natural disasters. Video Credit: ESA --- By Chrissy Sexton, Earth.com Staff Writer