NASA Unveils First Global Topographic Model Of Mercury

The National Aeronautics and Space Administration (NASA) has unveiled the first global digital elevation (topographic model) of Mercury. The model was unveiled by NASA’s Messanger (Mercury Surface, Space ENvironment, Geochemistry, and Ranging) mission.

The Messanger mission shows stunning detail the topography across the entire innermost planet of our solar system. The model was created using more than 100,000 images acquired by the MESSENGER mission. 
The new topographic map provides an unprecedented view of the region near Mercury’s North Pole which was earlier not available. The new global topographic model complements an older product released by MESSENGER which was derived from earlier measurements by the Mercury Laser Altimeter (MLA).

So let’s do:
1. Expand the term NASA ?
2. ____ has unveiled the first global digital elevation (topographic model) of Mercury.

Source – The Hindu

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