NASA says no return date yet for astronauts and troubled Boeing capsule at space station

NASA astronauts Sonny Williams and Butch Wilmore are experiencing an extended mission on the International Space Station due to malfunctions with the Boeing Starliner spacecraft. Originally planned for eight days, the mission has now lasted over 50 days. The Starliner encountered helium leaks and thruster failures, prompting NASA to conduct tests and consider backup plans, including using a SpaceX Dragon capsule. Despite the challenges, the astronauts remain in good spirits, and Boeing is confident in the Starliner's ability to return them safely.

What are NASA's backup plans for bringing the astronauts home?

How do the astronauts feel about their time in space according to the text?