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Become a nitrogen atom in the nitrogen cycle in our Traveling Nitrogen Classroom Activity Kit/Game. See all our games, activity kits and classroom activities.

Maria Mitchell

Maria Mitchell was an American astronomer who lived from 1818-1889. She was the first female professor of astronomy in the United States. She discovered the comet of 1847.

In 1847, Mitchell was awarded a gold medal from the King of Denmark. In 1848, she was the first woman appointed to the Academy of Arts and Sciences. In 1853, she received the first advanced degree given to a woman from Indiana Hanover College. Mitchell was elected president of the American Association for the Advancement of Women in 1875.

After Mitchell's death, a crater on the moon was named after her.


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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA