What began as an eight-day mission has turned into an exhausting six-month stay for NASA astronauts Sunita Williams and Barry ‘Butch’ Wilmore due to a Boeing Starliner malfunction. Now, recent photos

The cold environment of space further increases the body's energy demands, leaving astronauts like Williams and Wilmore at risk of nutritional deficiencies. Dr. Gupta suspects Williams’s body may be burning more energy as it adapts to weightlessness and maintains warmth in the harsh space environment.