Russian cosmonauts go on spacewalk from ISS

MOSCOW. April 19 (Interfax) - Russian cosmonauts Sergei Prokopyev and Dmitry Petelin have gone on a spacewalk from the International Space Station (ISS) to move a radiator from the Rassvet module to the Nauka module, using the European Robotic Arm (ERA).

According to Roscosmos, the cosmonauts opened the hatch of the Poisk module in the ISS' Russian segment at 4:41 a.m. and stepped outside.

The spacewalk will last for six hours and 37 minutes.

The main objective is to move an additional radiation heat exchanger from the Rassvet module to the Nauka module by the ERA. Cosmonaut Andrei Fedyayev will be operating the ERA from inside the ISS.

The Russian program's extravehicular activity (EVA 56) had been delayed twice.

This is the fourth spacewalk of Prokopyev and the second of Petelin.