NASA introduced its newest astronauts Monday, 10 scientists, engineers and test pilots chosen from more than 8,000 applicants to help explore the moon and possibly Mars.
For the first time, there were more women than men in a NASA astronaut class. They included a geologist who worked on NASA's Curiosity Mars rover, a SpaceX engineer who flew on a billionaire-sponsored spaceflight that featured the world's first private spacewalk and a former SpaceX launch director.
