<p>“NAT GEO” is spelled out in satellite images of (from left to right) clouds, grasslands, fjords, a tropical storm, more fjords, and a geologic dome called the Richat Structure.</p>

“NAT GEO” is spelled out in satellite images of (from left to right) clouds, grasslands, fjords, a tropical storm, more fjords, and a geologic dome called the Richat Structure.

Photograph by Adam Voiland, USGS/NASA Landsat 8 satellite

Satellite Photos Reveal Hidden Alphabet on Earth's Surface

If you look at enough satellite images of Earth, you can find the entire alphabet made out of fjords, rivers, mountains, and clouds.

It started with a plume of smoke in the shape of a ‘V’ on an image of Earth taken by one of NASA’s satellites. Soon it grew into an addictive hunt for more letters, made out of glaciers, storms, lakes and craters.

For years, NASA science writer Adam Voiland has been on the lookout for letter-shaped natural phenomena, combing through thousands of satellite images slowly collecting the entire alphabet and chronicling it in an online gallery. It was a hit, and soon Voiland was back for a second round, collecting another entire alphabet, this one all capitals, for a new children’s book, ABCs from Space.

Finding Earth’s

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