The ISS has fulfilled several tasks.
NASA astronauts Nick Hague and Ann McClane successfully made the cosmic idleness. The astronauts went into space from the ISS in six hours and 39 minutes.
The astronauts successfully replaced the Nickel-hydrogen batteries on the newer and more powerful lithium-ion on one pair of solar panels of the ISS. New batteries have greater power with less weight and volume. Next week Anne McClain and Christine Koch will be released into space in order to replace the second set of batteries.
The astronauts also performed several additional tasks, for example, removed the debris from outside the station and photographed the bag of tools for emergency repairs and thermal cover gateway that opens and closes for access to space.
New ISS crew arrived at the station March 15. Arrived at the station, the astronaut of Roskosmos Alexei Ovchinin and NASA astronaut Nick Hague and Christine Koh.