Spelling from SPACE: Nasa expert reveals two year project to find the entire alphabet in satellite images (4)

'D': The Enhanced Thematic Mapper on Landsat 7 acquired this image of Akimiski Island in James Bay on August 9, 2000 (pictured). ‘This is the first that I’ve noticed, but I have no doubt there are many more to find given the ceaseless mixing and swirling of clouds, smoke, dust, ice, and even phytoplankton that constantly occurs on our planet’, Voiland wrote in his blog

Readers and colleagues of Voiland stepped up to the challenge and left no stone unturned.

Letters were found in river systems, phytoplankton blooms, ocean reefs, and other dazzling natural phenomenons.

By the time Voiland compiled his gallery of natural art, he had become a new dad and noted he was ‘deep into a Dr. Seuss reading phase with my son’.

‘To add some education to the fun, I added hyperlinks to help you find out more about specific places, names and features.’

Included with each image are words that start with the letter.

For example, ‘A, what begins with A?’ ‘There is Antarctica and the Arctic, algal blooms,acid rain, and the atmosphere.’ ‘And aerosols altering an astronaut’s view of this ancient assemblage of rock in a state adjacent to Arizona!’

All hyperlinked to give the reader more information about the topic.