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Tourists will likely flood social media with photos of New York City landmarks this Memorial Day weekend — but astronaut Scott Kelly is one of only six people who can share the above view of Manhattan.

"Good morning #Manhattan! #bigapple #YearInSpace," Kelly tweeted. He attached a photo of the island of Manhattan that he had taken from the International Space Station Saturday.

Kelly and Russian cosmonaut Mikhail Kornienko have completed nearly two months of their year-long mission in space. Their trip is intended to provide insight into the ways long-duration spaceflight affects the body medically and psychologically, according to NASA.

Scott Kelly's identical twin brother, the former astronaut and NBC News aviation analyst Mark Kelly, remained on Earth and will serve as the control subject for the experiment. "I get the easy job, and Scott gets the fun job," Mark Kelly said in an essay written exclusively for NBC News in March.

— Elisha Fieldstadt