Dr. Jill Biden, wife of Vice President Joe Biden, is seen during a tour of a mockup of the International Space Station, Wednesday, March 2, 2016 in the Space Vehicle Mockup Facility at NASA's Johnson Space Center in Houston, Texas. Dr. Biden traveled to Houston to welcome home astronaut Scott Kelly, who is returning to Houston after a year long mission aboard the International Space Station.

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Keywords: biden, center, facility, houston, jill, johnson, mockup, nasa, spac, space, texas, tx, vehicle