The return of astronauts Sunita Williams and Butch Willmore to Earth from the International Space Station (ISS) is getting closer, thanks to a successful docked hot fire test conducted by Boeing’s Starliner spacecraft. This critical test, which involved firing the spacecraft’s Reaction Control System (RCS) thrusters, was completed on Saturday. It also included monitoring the spacecraft’s helium system, providing valuable data for the upcoming return to Earth.
Following the hot fire test, the Starliner team will conduct two undock-to-landing simulation tests this week. These tests will further refine the landing procedures and ensure a safe return for the astronauts. A Flight Test Readiness Review is planned for late next week, where the data gathered during the hot fire test will be analyzed and incorporated into the return flight plan. While a definitive landing date has not been set yet, several opportunities are available throughout August.
Boeing Starliner flight director Chloe Mehring highlighted the seamless collaboration between the Starliner and ISS teams during the test, emphasizing the successful execution of the docked hot-fire sequence. Astronauts Butch Wilmore and Sunita Williams, currently aboard Starliner Calypso, provided real-time feedback from the spacecraft during the test. Their participation will be crucial for the upcoming undock-to-landing simulations as well.
The successful completion of the hot fire test marks a significant milestone in Starliner’s return journey. However, NASA faces a potential challenge with congestion at the ISS due to recent delays and technical issues encountered by SpaceX and Boeing spacecraft. The space agency is preparing for increased traffic at the ISS, especially following the emergency sheltering of astronauts due to debris and propulsion problems with a new Boeing spacecraft. The upcoming weeks will be crucial for both Starliner and NASA as they work towards a safe and successful return for the astronauts and manage the growing congestion at the ISS.
