Russia's Progress MS-21 space cargo ship that was undocked from the International Space Station and sank in the Pacific was likely damaged by an external impact, Russia's Roscosmos space agency said on Tuesday, citing preliminary data.
"Such conclusions are made on the basis of images that show changes on the outer surface of the ship," Roscosmos said on the Telegram messaging platform.
Roscosmos published a photograph that it said showed a hole of around 12 millimetres (0.47 inch) in a thermal control system's radiator. It said solar panels were also damaged.
