The earth is an obscure realm and probe into its mystery involves enlightened scientific expertise and ardour. For anticipating probable global variations and its influence on human civilization, it is essential to understand our earth system in a much better way than we do at present. For investigating global processes, we require global measurements and that entails remote sensing. It is defined as "The science and art of obtaining information about an object, area or phenomenon through the analysis of data acquired by a device that is not in contact with object, area or phenomenon under investigation", by Lillesand and Kiefer (Lillesand et al., 2004). Remote Sensing has made swift progress since its inception a few decades ago and has been recognized as an influential tool in providing information of remote areas. Satellite remote sensors are the main source of consistent, continuous data for atmospheric, ocean and land studies both in spatial and temporal space. The world wide agencies like NASA, ISRO make use of innovative ways to observe and study EARTH's interconnected natural system with high-end computer analysis tools to understand and protect our home planet in a better way. Using remote sensors, the emergence of various type of Geovisualization platforms, such as World Wind by NASA, Google Earth by Google, ArcGIS Explorer by ESRI, Virtual Earth by Microsoft etc, has facilitated us to have meaningful view and spatially referenced information of our planet. Remote sensing has extensive applications in almost every field of human activity. Few of the vital domains include, Meteorology (for profiling of atmospheric temperature and water vapor, measuring wind velocity), Oceanography (for measuring sea surface temperature, mapping ocean currents), Glaciology (for mapping motion of sea ice and ice sheets, determining the navigability of the sea), Geology (for the identification of rock types, location of geological faults and anomalies), Agriculture (for monitoring the extent and type of vegetation, mapping soil types), Hydrology (for assessing water resources, forecasting melt water run-off from snow) and Disaster control (for warning of sand and dust storms, flooding, monitoring of pollution).