SpaceX delivered a four-person crew to the International Space Station early Sunday, setting the stage for Barry Wilmore and Sunita Williams to depart.

NASA astronauts Sunita Williams and Butch Wilmore will return to Earth this week after spending almost nine months on the International Space Station (ISS). The National Aeronautics and Space Administration (NASA) has confirmed that the Indian-origin astronaut and Wilmore will be sent back to the earth with another American astronaut and a Russian cosmonaut aboard a SpaceX Crew Dragon craft,

NASA astronauts Sunita Williams and Butch Wilmore face significant physiological and psychological challenges upon returning from microgravity. They may experience muscle atrophy, bone loss, dizziness,