CAPE CANAVERAL, Fla. — A pair of Russian spacewalkers have wrapped up their work high above Earth.

Space station residents Dmitry Kondratyev and Oleg Skripochka installed a camera and an experimental radio system during their 5Z\x-hour spacewalk. They tossed the radio cover and cable reel overboard.

The men also retrieved a pair of old science experiments. They worked so quickly the spacewalk ended almost an hour early.

Their four crewmates monitored the event from inside. The commander of the International Space Station is NASA astronaut Scott Kelly, brother-in-law of wounded Rep. Gabrielle Giffords. She’s married to Kelly’s identical twin brother, Mark, who’s also an astronaut.