Former Nasa scientist Dr Ravi Margasahayam exclusive on Sunita Williams' return

Former Nasa scientist Dr. Ravi Mardasayam discusses Sunita Williams and Barry Wilmore's return after 286 days in space. He clarifies misconceptions about their extended stay, highlighting the planned nature of the mission. The astronauts conducted over 600 science experiments, focusing on microgravity, biomanufacturing, and sustainability for future long-duration space travel.