Visit the Laboratory to learn how and why Earth changes. Discover the art and science of space-based remote sensing in the Lab. Then, spend some time on the Observation Deck comparing and contrasting data from satellites to see if our planet actually behaves as the Laboratory models suggest. Since its inception, NASA has been studying the Earth and its constantly changing environment, observing the atmosphere, oceans, land, ice and snow, and their influence on climate and weather. Radar Images of Earth - Imaging Radar is a technique for obtaining images of the land and ocean surface of Earth from a satellite or aircraft.
Radar uses radio waves which can penetrate clouds and obtain images day or night.
As such, EOS is the fundamental source of satellite data of the Earth and its environment. The overall goal of the EOS mission is to advance the scientific understanding of the entire Earth system and its changes on a global scale through the development of a deeper understanding of the components of that system and the interactions among them. The Earth Observing System Educators' Visual Materials Terra Animations - This website offers more information on the Terra spacecraft as well as several movies and spacecraft animations. Earth Science studies the Earth as an integrated system, emphasizing observations made from the unique perspective of space together with underlying laboratory, field, theoretical, and modeling research. Laboratory for Terrestrial Physics - The Laboratory for Terrestrial Physics is within the Earth Sciences Directorate at NASA Goddard Space Flight Center.