The Expedition 61 crew is fresh off the first spacewalk of 2020 and preparing for two more before the end of the month. Meanwhile, the International Space Station residents continue ongoing microgravity research and life support maintenance.

NASA spacewalkers Jessica Meir and Christina Koch successfully installed two new lithium-ion batteries on Wednesday that store and distribute power collected from solar arrays on the station’s Port-6 truss structure. They will finish the battery replacement work during another six-and-a-half-hour spacewalk scheduled for Monday at 6:50 a.m. EST. NASA TV begins its live coverage of the spacewalk activities at 5:30 a.m.

The third spacewalk is planned for Jan. 25 with astronauts Andrew Morgan and Luca Parmitano. They will finish the complex thermal repair work they began last year on the Alpha Magnetic Spectrometer, an astrophysics device searching for evidence of antimatter and dark matter.

All four astronauts met in the afternoon and called down to Mission Control for a briefing with spacewalk specialists. The quartet had a routine discussion with the engineers about spacewalking gear and procedures.

On the Russian side of the orbiting lab, the two veteran cosmonauts worked back and forth on space science and the upkeep of the space station. Alexander Skvortsov spent a portion of his day on cell biology research before servicing an exercise cycle. Oleg Skripochka checked out a variety of hardware that detects micrometeoroid impacts on the station and observes natural catastrophes on Earth.