Astronaut Suni Williams, of Needham, said she has been working out in space, and she credits that and being in space to possible changes in her body. But, she said, she weighs the same.

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,

Amid public concern, NASA said the Starliner astronauts and the other five spacefarers living in orbit "undergo routine medical evaluations."

Williams was supposed to spend eight days in space, but her Boeing Starliner spacecraft faced some technical issues and delayed her return to Earth until February 2025.

Astronaut Sunita Williams has lost significant weight during her extended mission aboard the ISS. Now, NASA is focusing on stabilising her weight after technical issues delayed her return, but reassures that routine medical checks are in place.