NASA and Boeing have completed ground tests on the Starliner spacecraft's troubled Reaction Control System (RCS) thrusters at the White Sands Test Facility, aiming to replicate the conditions that led to issues during its June flight. Astronauts Butch Wilmore and Suni Williams remain on the International Space Station (ISS) far beyond their planned stay due to helium leaks and thruster malfunctions. Although the thrusters have been tested and partially restored, their return date remains uncertain as engineers continue analyzing data and performing inspections. NASA assures that Starliner has sufficient helium supply and is safe for emergency return. Detailed reviews and a final readiness review will determine the spacecraft's ability to bring the astronauts back to Earth in the coming weeks.