HOUSTON, July 15 (UPI) -- Russian cosmonauts worked Tuesday outside the International Space Station, prepping the outpost's Russian portion for next year's arrival of a lab module.
The 5 1/2-hour spacewalk for cosmonauts Sergei Volkov and Oleg Kononenko was less risky than last week's venture outside the ISS, when the two removed a potentially defective explosive bolt from the latching assembly of the Russian space capsule, the Houston Chronicle reported.