Live video of the docking of a Progress cargo ship with the space station

Clad in pressurized spacesuits, two Russian cosmonauts headed outside the International Space Station on Wednesday and hand-released four tiny CubeSats and installed hardware for a German experiment to track animal migration.

Two astronauts floated outside the International Space Station Sunday for the first in a series of spacewalks to upgrade the lab’s aging solar power system, assembling a support fixture that eventually will hold a new solar blanket.

Three veteran space fliers rode a Soyuz rocket into orbit Wednesday from the Baikonur Cosmodrome in Kazakhstan, heading to the International Space Station for a five-month stay.