NASA astronauts Barry 'Butch' Wilmore and Sunita 'Suni' Williams have faced multiple delays in their return from the International Space Station due to technical issues with Boeing's Starliner spacecraft. Problems include helium leaks and thruster malfunctions, with only one of 27 thrusters still offline. NASA and Boeing are taking time to review propulsion system data, and a new return date is now targeting after July 2. The Starliner can remain docked for up to 45 days, providing ample time to address these issues. While the astronauts are not in immediate danger and have sufficient supplies, the situation underscores the challenges Boeing faces in establishing its spacecraft as a reliable alternative to SpaceX's Crew Dragon.