Cosmonauts in action.
This morning on NASA TV we can watch a spacewalk by two cosmonauts, Kondratyev and Skripochka, on the outside of the ISS. The first experiment to be worked on is the Radiometria system outside of the Zvesda module. This experiment picks up signals from sensors on Earth that will be useful for earthquake monitoring and studies. The second experiment is the Molniya Gamma module, which monitors gamma and optical wavelengths emitted from lightning and thunderstorms. Following that, they will retrieve some materials which have been exposed to space for some time.
Keeping an eye on lightning.