Question:  Charles "Pete" Conrad Jr., an American astronaut, set an eight-day space endurance record along with his Command Pilot Gordon Cooper, one of the seven original astronauts in the first manned space program of the United States called what?
Sentence (from "Soyuz 9"): The mission paved the way for the Salyut space station missions, investigating the effects of long-term weightlessness on crew, and evaluating the work that the cosmonauts could do in orbit, individually and as a team.
Relevant evidence: No