Jeff’s Earth- 4K video. #Jeffs #Earth #4K #Video #Explore #Making #Data #Planet #Space

When NASA astronaut Jeff Williams returned to Earth from the International Space Station on Sept. 6, he had been in space for 172 days. Adding those days to his three previous space flights, Williams has spent a total of 534 days off the planet, the longest for a NASA astronaut. The previous record holder, Scott Kelly, logged a three-flight total of 520 days.

Above: Jeff Williams monitors bowling ball-sized internal satellites known as SPHERES (Synchronized Position Hold, Engage, Reorient, Experimental Satellites) during a maintenance run in the International Space Station's Japanese Kibo Laboratory Module on June 30, 2016.
During his 172 days in orbit as Expedition 48 commander, Williams and others conducted hundreds of experiments and technology demonstrations.

Here, Williams works with NASA astronaut Kate Rubins, unseen, as they successfully installed a new international docking adapter on Aug. 19, 2016 during a five-hour and 58-minute spacewalk. The adapter will enable future crew vehicles from Boeing and SpaceX to dock at the station.
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