NASA posts a lot of cool images.
Like mystical earth phenomena...
...and robot selfies from Mars.
In short, NASA's photos are awe-inspiring and completely breathtaking.
But the photo NASA posted for International Women's Day may be one of the space agency's most inspiring:
This 2010 photo was the first time four women were in space at the same time.
So who are the badass women in NASA's International Women's Day photo?
1. Stephanie Wilson, an engineer and the second African-American woman in space.
2. Dorothy Metcalf-Lindenburger, a former high school astronomy and earth sciences teacher, who served as a mission specialist on that particular flight.
3. Naoko Yamazaki, an engineer and researcher who was part of the Japanese Aerospace eXploration Agency and the second Japanese woman in space.
4. And Tracy Caldwell Dyson, a chemist, who served as flight engineer and performed three successful spacewalks on that mission.
Since the photo was taken in 2010, Yamazaki and Metcalf-Lindenburger have retired from spaceflight and moved on to different things, but Wilson and Dyson are still active in the astronaut program.
NASA owes a great debt to women, and it's great to see the agency highlighting their contributions.
As of March 2016, there are only three people in space, none of whom are women, but thanks to NASA's 2013 astronaut class, more are on the way.
The 2013 astronaut candidate class is evenly split, with four men and four women — including Christina Hammock Koch, Nicole Aunapu Mann, Anne McClain, Jessica Meir. This is the class of astronauts who might be part of our first mission to Mars!
They're probably already preparing their "one small step" speeches and I, for one, can't wait to hear them.