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Vagner's lens lesson may not change anyone's mind, but it's a solid reminder of the fantastic photography equipment the cosmonauts and astronauts have available on the ISS. It gives all of us down here on Earth a different and valuable perspective on our round world.

Meanwhile, NASA is celebrating 20 years aboard the ISS. [url=]Here are some of the best space station[/url] photos taken during nearly two decades of crewed orbit.