Live coverage: Space station crew safely returns to Earth

NASA’s Perseverance rover, set for liftoff Thursday on a journey to Mars, posed some unusual challenges for launch crews working with the robot’s plutonium-fueled power generator, but United Launch Alliance’s Atlas 5 rocket is uniquely suited for the job, the company’s CEO says.

A modified Russian missile built for nuclear war blasted off on a peaceful mission Friday, targeting placement of a European Earth observation satellite in orbit to measure atmospheric chemistry and global air quality. Liftoff from the Plesetsk Cosmodrome in northern Russia occurred at 0927 GMT (5:27 a.m. EDT).

Officials working on India’s Mars orbiter project are finalizing plans for a six-month science campaign after the spacecraft arrived in orbit last week, an achievement that has already satisfied the mission’s primary objectives, the head of India’s space agency said.