Shannon Lucid gives a guided tour of the Mir space station

Russian engineers have a “really, really good idea” about what went wrong during a Soyuz launch to the International Space Station Oct. 11, forcing the ship’s two-man crew to carry out an emergency abort, NASA Administrator Jim Bridenstine said Tuesday. He added that he expects the Russians to resume piloted Soyuz flights in December.

The unpiloted Russian Soyuz MS-14 spacecraft docked with the International Space Station on its second try at 11:08 p.m. EDT Monday (0308 GMT Tuesday), three days after aborting an approach due to a problem with the Kurs automated rendezvous system.

A Russian Soyuz booster and an automated Progress resupply ship reached their launch pad Friday at the Baikonur Cosmodrome in Kazakhstan, two days before firing into orbit test out a new expedited rendezvous sequence that will culminate in the Progress spacecraft’s docking with the International Space Station just three-and-a-half hours after launch.