The number of black women in science and technology is larger than one might think, but still too small. The women featured in this gallery use their science, math and engineering degrees in sectors ranging from academia to finance to satellite research. All are changing the image of what it means to be a techie. 

Every year during March, Women's History Month, you can find a sprinkling of celebrated African Americans. Our greatest-hits collection features Sojourner Truth, Harriet Tubman, Madam C.J. Walker, Josephine Baker, Althea Gibson and Angela Davis. But black women's history has many lesser-known players who rarely shine in the spotlight. Here are a few of the rabble-rousing, boundary-crossing women in history you may not know about -- but should.

For Women's History Month, The Root decided to spotlight some of the black women who are influential in activism and the nonprofit world. Find out how these women are trying to change the world.

This week on The Confab: Marriage equality comes to D.C., but is the fight over for same-sex couples? Plus, a look at women, power and black pathology: Why are black women getting such a bad rap? Join The Root's managing editor Joel Dreyfuss as he talks with Washington reporter Dayo Olopade and regular contributor to The Root Adam Serwer.

* Podcast production by Abdullah Rufus.

* Podcast theme music by Timothy Morrison.