Spelling from SPACE: Nasa expert reveals two year project to find the entire alphabet in satellite images (11)

'O': On January 24, 2008, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on the Terra satellite captured this image of Tenoumer meteorite crater in Mauritania. The meteorite struck Earth between 10,000 and 30,000 years ago (pictured). ‘To add some education to the fun, I added hyperlinks to help you find out more about specific places, names and feature'