The new international docking adapter, or IDA, was launched to the station last month aboard a SpaceX Dragon cargo ship. The lab's robot arm pulled the docking mechanism out of the Dragon's trunk section earlier this week and positioned it directly atop a tunnel-like pressurized mating adaptor extending from Harmony's upper port. Working with electrical cables that were routed three years ago during two earlier spacewalks, Hague and Morgan connected the IDA to station power, allowing astronaut Christina Koch, working inside Harmony, to send commands driving internal hooks to close. After flight controllers confirmed the $22.5 million IDA was firmly...