WEST ORANGE, NJ - NASA astronaut Scott Kelly, a West Orange native, and cosmonaut Mikhail Kornienko completed their 340-day mission aboard the International Space Station after the Soyuz spacecraft carrying them left the orbiting lab and landed in Kazakhstan on Tuesday, according to NASA.

No pictures of the two have emerged as of publication of this report. They will be studied for their physical and mental changes after their lengthy space flight. The mission was designed to see how the human body can cope with long periods in space, in preparation for possible missions to Mars, according to NASA. Those missions would take two and a half years, round trip.

Kelly, who was raised and schooled in West Orange, is the first American to spend more than 11 months in the weightlessness of space. Scientists will be comparing his body and mental state to that of his twin brother, Mark Kelly, who was on Earth during the same period, according to NASA.

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Kelly also holds the American record of the longest combined amount of time in space at 520 days over four missions. according to NASA.

Scientists will not only be looking at muscle and body changes, but also changes in Kelly’s immune system after nearly a year in weightlessness and a diet of space food, according to NASA.

Another focus will be the effects of weightlessness on Kelly’s eyesight, which he has already said has changed in his mission time, according to NASA.

After nearly a year together, Kelly and Kornienko will part company and return to distant destinations from one another: Kelly will be going to Houston for evaluation and testing, and Kornienko to a town outside of Moscow.

After all the tests are over, Kelly has made it clear that some of the first things he wants to do are eat at a table, and, when back home, to jump in his pool, according to multiple news sites.

He's Home: Locals React to Scott Kelly's Return to Earth and the US