Boeing's Starliner spacecraft, after spending three months in orbit instead of the planned week, has undocked from the I…

Boeing's Starliner spacecraft, after spending three months in orbit instead of the planned week, has undocked from the ISS in unmanned mode due to engine issues and helium leaks. The Starliner will return cargo and waste to Earth within six hours. Meanwhile, its crew remains on the ISS until February and will be rescued by SpaceX.

@science