Live coverage: SpaceX supply ship returns to Earth

Astronaut Shane Kimbrough and his two Russian crewmates — Soyuz MS-02 commander Sergey Ryzhikov and flight engineer Andrey Borisenko — undocked from the International Space Station and plunged back to Earth Monday, landing on the steppe of Kazakhstan to close out an extended 173-day mission.

A Boeing Starliner crew capsule fired off a stand early Monday at White Sands Missile Range in New Mexico on a mile-high test flight to validate the spacecraft’s emergency escape thrusters. Only two of the ship’s three main parachutes deployed on descent, but Boeing officials do not expect any impacts on the planned launch of an unpiloted Starliner demonstration mission to the International Space Station in December.

Russian launch crews on two continents are putting the final touches on a pair of Soyuz rockets scheduled to blast off less than two hours apart Friday — one carrying a three-man crew to the space station, and another boosting two European navigation satellites into orbit from the Amazon jungle.