Astronaut Soichi Noguchi joined some of his predecessors in New York City to ask world governments to prepare to protect humanity from asteroids on a collision course with Earth.
Three former U.S. astronauts and one from Romania on Friday appeared along with Noguchi on behalf of the Association of Space Explorers, a professional organization for crew on space flights.
"The very first step is to find where those objects are and track (them)," Noguchi said at a news conference at the American Natural History Museum.