Eastman is a crater on

Mercury Mercury commonly refers to: * Mercury (planet), the nearest planet to the Sun * Mercury (element), a metallic chemical element with the symbol Hg * Mercury (mythology), a Roman god Mercury or The Mercury may also refer to: Companies * Merc ...

first seen by ''

MESSENGER ''MESSENGER'' was a NASA robotic space probe that orbited the planet Mercury between 2011 and 2015, studying Mercury's chemical composition, geology, and magnetic field. The name is a backronym for "Mercury Surface, Space Environment, Geoche ...

'' during the mission's first Mercury flyby. Eastman exhibits some features characteristic of a fresh, relatively young crater. The walls of Eastman have clearly visible terraces, and the central peak structure is well preserved. Eastman is located near Xiao Zhao crater. It is named for

Charles Eastman Charles Alexander Eastman (February 19, 1858 – January 8, 1939) was an American physician, writer, and social reformer. He was the first Native American to be certified in Western medicine and was "one of the most prolific authors and speaker ...

(Santee Dakota), known as one of the first Native American to graduate from an American medical school,

Boston University Boston University (BU) is a private research university in Boston, Massachusetts. The university is nonsectarian, but has a historical affiliation with the United Methodist Church. It was founded in 1839 by Methodists with its original campu ...

, and to be licensed as a doctor. He worked on Sioux reservations in South Dakota, where he met and married

Elaine Goodale Elaine Goodale Eastman Elaine Goodale Eastman (1863–1953) and Dora Read Goodale (1866–1953) were American poets and sisters from Massachusetts. They published their first poetry as children still living at home, and were included in Edmund Cla ...

from Massachusetts, who headed BIA schools. They had several children together. In later life he became known as an important author of the Native American culture, publishing nine books about his

Santee Sioux The Dakota (pronounced , Dakota language: ''Dakȟóta/Dakhóta'') are a Native American tribe and First Nations band government in North America. They compose two of the three main subcultures of the Sioux people, and are typically divided into ...

childhood. The crater was named in July 2009 by the

IAU The International Astronomical Union (IAU; french: link=yes, Union astronomique internationale, UAI) is a nongovernmental organisation with the objective of advancing astronomy in all aspects, including promoting astronomical research, outreach ...

Eastman crater EN1040632023M EN1040632027M

References

Impact craters on Mercury {{Mercury-planet-stub