Helium leaks and thruster issues prompted NASA to extend their stay aboard the space station indefinitely — Wednesday marked their 35th day in orbit — while engineers carry out tests and analysis to better understand what caused the problems and to make sure the spacecraft can safely being Wilmore and Williams home.
The problem for NASA and Boeing is that the Starliner’s service module, which houses the helium lines, thrusters and other critical systems, is discarded before re-entry and burns up in the atmosphere. Engineers will not be able to study the hardware after the fact and as a result, they want to collect as much data as possible before NASA astronauts Butch Wilmore and Sunita Williams head home.
The additional docked time will give Starliner commander Barry “Butch” Wilmore and co-pilot Sunita Williams more time to help out aboard the station while flight controllers and engineers continue scrutinizing telemetry and finalizing plans for re-entry with five known helium leaks in the capsule’s propulsion system and unexpected, presumably now-resolved issues with multiple maneuvering jets.
Trouble with one of the Hubble Space Telescope’s three remaining gyroscopes, critical for aiming and locking onto targets, prompted mission managers to switch to a backup control mode that will limit some observations but keep the iconic observatory running well into the 2030s, officials said Tuesday.
The seemingly star-cross Boeing Starliner — within minutes of its long-delayed blastoff on the spacecraft’s first piloted test flight — was grounded again Saturday when one of three redundant computers managing the countdown from the base of the launch pad ran into a problem, triggering a last-minute scrub.
© 1999-2025 Spaceflight Now Inc