A recent photo of Williams aboard the ISS sparked rumors about her health, restoring the media's habit of prying into the appearance of women astronauts.

NASA doctors are monitoring the second astronaut stranded on the International Space Station — and making sure that he isn’t losing too much weight during his extended stay in space. A NASA employee who is involved in the mission told The Post that Butch Wilmore has also been losing body mass,

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Stranded astronaut Sunita Williams said the growing concerns about her health were nothing but “rumors” — as she attributed the change in her appearance to “fluid shift.” Williams, 59, sparked concern last week when she appeared in a NASA photo appearing gaunt,

She explained that her physical appearance has changed due to the rigorous exercise regimen astronauts follow to combat the effects of microgravity on muscle and bone density.