Cox is passionate about increasing diversity within sciences, engineering and NASA.[13][14][15][16][17] She served on the board of directors at Griffith Observatory,[18] as well as on the President's Council for Cornell Women Alumni.[19] She is an invited speaker for the United States Department of State, travelling the world and talking about her career and NASA's robotic space exploration program.[20] In 2014, she visited Pakistan, Rio de Janeiro, and Bahia, inspiring young women from unprivileged communities to study sciences and engineering.[21] She was a keynote speaker at SIGGRAPH 2016[22][23] and visited Bosnia and Herzegovina in the same year, touring the country with the United States Department of State.[24][25] She gave a TEDx talk at Beacon Street in 2017, which was later chosen by Wired as one of the best science talks.[26][27] "What time is it on Mars?" has been viewed almost two million times.[28] She visited Kuwait in 2018, discussing their 2021 Mars mission.[29][30]