Fresh off a series of three complex spacewalks to repair a $2 billion cosmic ray detector, the International Space Station’s crew is set to receive two robotic resupply freighters in the next week after launches from Florida’s Space Coast and the steppes of Kazakhstan.

Russian investigators believe a malfunction during separation of the Soyuz rocket’s four liquid-fueled first stage boosters two minutes after liftoff from Kazakhstan led to an emergency landing of a two-man crew heading for the International Space Station, officials said Friday.

A day after a rare last-minute abort by its Soyuz launcher, a sharp-eyed civilian-operated Russian Earth observation satellite blasted off from the Baikonur Cosmodrome on Sunday on a five-year mission, giving Russia a fleet of three advanced digital imaging spacecraft in orbit.