It was a mammoth task, so he enlisted the internet in the ambitious project.
Now, over three years later, his search is completed and the results are exceedingly beautiful and educational.
Some letters, like O and C, were easy to find, said Voiland.
OthersA, B, and Rwere maddeningly difficult.
Here is a selection of alphabets from the gallery.
Bonjour B, what begins with B?
Biomass and boreal forests.
Beirut, Barcelona, and Brasilia.
A bunch of babbling birds bunched up along Holla Bend.
In the winter, it is common for the refuge to host 100,000 ducks and geese at once.
Big C, little C, what begins with C?
This curving crescent of carbonate and quartz clinging to the coast.
There is CloudSat and CALIPSO.
Contrails from jets cruising over cumulus clouds.
The Corolis force, chlorofluorocarbons, and crafty coccolithophores!
What begins with E?
Earth, of course.
Evaporation and the exosphere.
Eskers, erratics, El Nino, and EO-1.
This ephemeral entourage of algae off the east coast of an island where English is spoken!
Big F, little f. What begins with F?
Firn-filled fjords and frozen forms on folded, fossil-filled facies of rock!
Fog, fossil fuels, and faults.
France, Fort Collins, and dont forget Fiji.
In situ measurements and infrared radiation.
Ice sheets and isthmuses.
This intriguing image of Indias Andaman Island after an intimidating incident involving an earthquake.
Jason-1 and the jet stream.
Jerusalem, Jakarta, and Johnson Space Center.
This jade-colored coral reef juxtaposed against the jumble of the sea.
Mumbai, Miami, and Moscow.
These medial moraines merging muck and minerals for millennia!
Numerous cloud condensation nuclei in the North Pacific!
Nefarious nitrogen dioxide and NOx.
The near infrared and NDVI and the Nimbus satellite.
Noreasters and the Nile at night.
Ship emissions contain small particles that cause the clouds to form
What begins with T?
Taiga, typhoons, tornadoes, and thunderstorms.
The trove of trees and towns tucked into this terrain in the United Arab Emirates.
There are xenoliths, the xylem in xeric woodlands, and the cities of Xian and Xalapa.
Not much else begins with X, so relaX and enjoy this eXcellent icy X!
Z, what begins with Z?
Zillions of smoke particles zipping, zooming, and zigzagging above Canada!
See more of the gallery onNASAs website.