NASA just graduated its newest class of astronauts. Out of the over 18,300 applicants from all around the United States, the District of Columbia, Guam, American Samoa, and Puerto Rico, there are the 12 who were selected. For those doing the math, that puts the odds of being selected at less than 1 in 1,500. 2017's class is full of incredibly talented people with backgrounds ranging from engineering, the Navy, the Marines, to geoscience. One of the most exciting parts? Roughly half of them are women!