If that valve needs replacement, contact your water utility to shut off the main valve at the curb. The post Home Repair: How to Replace the Main Shut Off Valve appeared first on Family Handyman.

The Boeing Starliner, is set to undock from the ISS on June 22. This is a several day delay. During its current mission, the spacecraft has encountered a fifth helium leak and a stuck oxidizer valve.

A valve permits a jet of oxidizer to squirt into the rear chamber, combustion begins, and a hot, high-temperature flame roars out of the nozzle.

The NVS-02 satellite encountered a critical failure in its Liquid Apogee Motor (LAM) system, specifically with the oxidizer valve that prevents the thrusters from firing and executing necessary ...