A piece of space junk smacked into the robotic arm on the International Space Station, but near-term operations should not be affected, according to the agencies involved. Robotic operators noticed a hole in the station's Canadarm2 provided by the Canadian Space Agency, which has been in service in orbit since 2001, during a routine inspection on May 12, the CSA officials said in a blog post Friday (May 28). Officials called the hole a "lucky strike" given the relatively small size of the arm, which is 57.7 feet (17.6 meters) long and has a diameter of just 14 inches (35...