NASA astronaut Sunita "Suni" Williams set a new milestone on January 30, surpassing former astronaut Peggy Whitson's record for total spacewalking time.

Astronaut Sunita Williams is spearheading groundbreaking agricultural experiment aboard International Space Station (ISS).

NASA astronauts Sunita Williams and Barry Wilmore, who have been stranded on the International Space Station (ISS) for the past nine months, are finally preparing for their return to Earth ...

India, Poland and Hungary launched their first astronauts in more than 40 years Wednesday, sending them on a private flight ...

NASA squashes rumors of astronaut Sunita Williams' health that has been floating around social media.