India, March 24 -- As NASA astronauts Sunita Williams and Butch Wilmore go on with their lives after being stranded in space for over nine months, several social media users noted physical changes in their bodies. Some raised concerns about Williams' 'deformed' and 'extended' chin. Doctors have now explained why the two look different.

Sunita Williams and Wilmore returned to Earth last week, after a months-long stint at the International Space Station. Their original mission was supposed to last eight days. As soon as Williams landed off the Florida coast, she appeared 'thinner and exhausted'

Social media users noted changes in her chin. "It's been a few days since the astronauts Barry 'Butch' Wilmore and Sunita Williams returned to Ear...