Spelling from SPACE: Nasa expert reveals two year project to find the entire alphabet in satellite images (2)

'A': An astronaut captured this photograph of Utah’s Green River doubling back on itself—a feature known as Bowknot Bend—from the International Space Station (left). 'B': The Operational Land Imager on Landsat 8 acquired this image of the Arkansas River and the Holla Bend Wildlife Refuge (right)