Nasa astronaut reports ‘strange noise’ from Boeing Starliner spacecraft

Butch Wilmore reports pulsing sounds from capsule dogged with issues and set to return without astronauts

The Nasa astronaut Butch Wilmore has reported a strange noise" coming from the stricken Boeing Starliner space capsule whose problems have left him and his colleague Suni Williams stuck in orbit for six months longer than they anticipated when they blasted off from earth in June.

Wilmore radioed mission control in Houston on Saturday to report a pulsing sound from a speaker inside the capsule. I've got a question about Starliner," Wilmore said. There's a strange noise coming through the speaker ... I don't know what's making it."