Put up your dukes! Expedition 39 Commander Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) clowns with Robonaut 2, a humanoid robot, in the U.S. lab Destiny while preparing for a public TV event. The Soyuz TMA-12M spacecraft launched and docked this week. The station's newest arrivals spent two days in space on their trek to join their orbiting crewmates. Commander Koichi Wakata and Flight Engineers Rick Mastracchio and Mikhail Tyurin greeted new arrivals Flight Engineers Alexander Skvortsov, Steve Swanson and Oleg Artemyev. The sextet then gathered inside the Zvezda service module for a welcoming ceremony with words of congratulations from family members and mission officials. Afterward the crew got together for a safety briefing to familiarize themselves with the station's emergency gear, escape routes and team member roles. The entire crew was off-duty Friday as they sleep-shifted to get back into their normal schedules having stayed up late Thursday night. They will...