This new NASA astronaut candidate has already been to space

Anna Menon, one of NASA's 10 new astronaut candidates, already has a spaceflight under her belt — SpaceX's Polaris Dawn ...

NASA introduces new class of astronauts who could fly to moon, Mars. Here's a look

The next generation of American astronauts have been introduced as the intrepid spacefarers who could be part of landmark NASA missions back to the moon and eventually to the surface of Mars.