NASA picks eight new astronauts and a record-high half of them are women NASA has eight new astronauts and four of them are women, making up the highest percentage of female astronaut candidates ever selected by the agency. Among the lucky candidates: the first female fighter pilot to become an astronaut in nearly two decades. A female helicopter pilot also is in the group. Monday's announcement came on the eve of the 30th anniversary of the launch of the first American woman in space, Sally Ride. She died last summer. NASA's new astronauts, clockwise from left: Josh A. Cassada, Victor J. Glover, Tyler N. Hague, Christina M. Hammock, Andrew R. Morgan, Jessica U. Meir, Anne C. McClain and Nicole Aunapu Mann. The eight - all in their 30s - were chosen from more than 6,000 applications received early last year, the second largest number ever received. They will report for duty in August at Johnson Space Center in Houston and join 49 astronauts currently at NASA. The number has dwindled ever since the space shuttles stopped flying in 2011. Many astronauts quit rather than get in a lengthy line for relatively few slots for long-term missions aboard the International Space Station. NASA Administrator Charles Bolden said these new candidates will help lead the first human mission to an asteroid in the 2020s, and then Mars, sometime in the following decade. They also may be among the first to fly to the space station aboard commercial spacecraft launched from the U.S., he noted. Russia ferries the astronauts now. New class: These are the eight candidates selected to train for NASA's 2013 astronaut class 'These new space explorers asked to join NASA because they know we're doing big, bold things here - developing missions to go farther into space than ever before,' Bolden said in a statement. The Class of 2013's Nicole Aunapu Mann, a major in the Marines, is an F/A 18 pilot serving at the U.S. Naval Air Station in Patuxent River, Md. Army Maj. Anne McClain is a helicopter pilot. The two other women, Christina Hammock and Jessica Meir, are scientists. All four men have military backgrounds, including one who is a former emergency room physician, Dr. Andrew Morgan. The others are Josh Cassada, Navy Lt. Cmdr. Victor Glover and Air Force Lt. Col. Tyler (Nick) Hague.