NASA is launching a high-tech laser satellite to study the changes in earth’s ice. This is going to help us understand why the ice is melting so fast. In recent years, the melted ice has contributed to the increase of global sea level to more than a millimetre a year. Called the Ice, Cloud and Land Elevation Satellite-2 (ICESat-2), the satellite is scheduled to be launched from Vandenberg Air Force Base in California on September 15, NASA. This satellite will measure the elevations of changing ice and capture more than 60,000 measurements in a second. ICESat-2 will improve upon NASA's 15-year record of monitoring the change in polar ice heights.