12
Dec
Washington: NASA's satellite to track Earth's melting ice has revealed accurate first maps of Antarctica such that it can measure sea ice height to within an inch, the US sapace agency has said.Less than three months into its mission, the Ice, Cloud and land Elevation Satellite-2, or ICESat-2, is measuring the height of sea ice to within an inch, tracing the terrain of previously unmapped Antarctic valleys, surveying remote ice sheets, and peering through forest canopies and shallow coastal waters, NASA said in a statement on Tuesday. ICESat-2 was launched on September 15 with a three-year mission to understand Earth's ice…