CAPE CANAVERAL, Fla. (AP) — Spacewalking astronauts gave the International Space Station's big robot arm a new hand Thursday.

Commander Randy Bresnik and Mark Vande Hei accomplished the job on the first of three NASA spacewalks planned over the next two weeks.

"One down, two to go," Bresnik said as the seven-hour spacewalk came to a close. The pair will go back out Tuesday to lubricate the new arm attachment.

The latching mechanism on one end of the 58-foot robot arm malfunctioned in August. It needed to be replaced before the arrival of an Orbital ATK supply ship in November.

Hustling through...