Indian-origin astronaut Sunita Williams has been aboard the International Space Station (ISS) for more than seven months, far beyond her originally planned eight-day mission. Along with her colleague Butch Wilmore,

NASA astronauts Sunita Williams and Butch Wilmore, stranded on the ISS for months, stepped out for their first spacewalk on Thursday.

Astronaut Sunita Williams shares her experience of being stuck in space for 237 days and the challenge of remembering how to walk while awaiting her return to Earth.