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Don Pettit was born on April 20 1955 and he hasn't died yet. He is a veteran of two long-duration stays aboard the International Space Station, one space shuttle mission and a six-week expedition to find meteorites in Antarctica.

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Because There are not many astronauts that are photographers and his photographs are unique to him

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He had to take photographs of space as it is his Job

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He is a photographer on the ISS and He is also famous for things other than photos.

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Photographs can show us things that unaided human eyes cannot see. Mount a camera on a tripod, point it at the heavens, and open the shutter, and you can capture an image of curving streaks of starlight that reveal information about our planet and its position in the solar system. I have made such time exposures of space from Earth, so when I had the chance, I figured it was only fitting to make time exposures of Earth from space.

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Human eyes can only see a limited slice of the full electromagnetic spectrum. Just beyond what we see as deep red at one end of our “visible spectrum” is infrared radiation, wavelengths that are rich with information about our environment, but escape our detection.... In this infrared photograph, lush green plant life appears as bright orange-red. Rocky crags and other barren geologic structures appear as dark green to blue-grey. Turbulent oceanic currents become visible as whitish veils, and coral reefs glow a tie-dyed yellow-green

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From space I have been able to capture wide-angle oblique views of natural structures on Earth that stretch across half a continent, and telephoto views that showcase fine details. Light is the heart of these photographs. Low-angle sunlight casts long shadows, and gives depth. Noontime sun creates sun glint, intense lighting that causes surface water to act like a mirror directly reflecting the sun’s rays into the lens. Sun glint reveals ocean surface patterns that are invisible under any other lighting condition.

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"Apart from everything else an astronaut does on orbit, photography is actually part of our job."

Don Pettit says that all astronauts go through photography training but only some catch on and do proper photography on the ISS.

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They use different techniques for different photos, such as exposure for Photos like photo 1, they also use Cameras which sense different spectrums of light and lastly they use good framing to get great pictures of earth.

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Whats the subject matter of their photography

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Whats the subject matter of their photography

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Pictures from space

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Nasa and a love for art, Don Pettit captures photographs in an artistic way and he does the same with his experiments. Don Pettit feels that If you don't do something artistically then you are not bringing out the full potential of that thing.