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The supermassive black hole at the core of Messier 87, here shown by an image by the Event Horizon Telescope, is among the black holes in this list. This is an ordered list of the most massive black holes so far discovered (and probable candidates), measured in units of solar masses (M☉), approximately 2 × 1030 kilograms.
Blackface is the practice of performers using burnt cork, shoe polish, or theatrical makeup to portray a caricature of black people on stage or in entertainment. Scholarship on the origins or definition of blackface vary with some taking a global perspective that includes European culture and Western colonialism. [ 1 ] Scholars with this wider view may date the practice of blackface to as ...
Sagittarius A*, abbreviated as Sgr A* (/ ˈsædʒˈeɪstɑːr / SADGE-AY-star[ 3 ]), is the supermassive black hole [ 4 ][ 5 ][ 6 ] at the Galactic Center of the Milky Way. Viewed from Earth, it is located near the border of the constellations Sagittarius and Scorpius, about 5.6° south of the ecliptic, [ 7 ] visually close to the Butterfly Cluster (M6) and Lambda Scorpii.
African Americans. African-American culture, [1][2] also known as Black American culture or Black culture in American English, [3][4][5][6][7] refers to the cultural expressions of African Americans, either as part of or distinct from mainstream American culture.
Black is a color [2] that results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. [3] It is often used symbolically or figuratively to represent darkness. [4] Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus Age of Enlightenment, and night versus day. Since the Middle ...
Afro–Latin Americans or Black Latin Americans[30] (sometimes Afro-Latinos [a][34]) are Latin Americans of full or mainly sub-Saharan African ancestry. The term Afro–Latin American is not widely used in Latin America outside academic circles.
The National Association for the Advancement of Colored People (NAACP) [a] is an American civil rights organization formed in 1909 as an interracial endeavor to advance justice for African Americans by a group including W. E. B. Du Bois, Mary White Ovington, Moorfield Storey, Ida B. Wells, Lillian Wald, and Henry Moskowitz. [4][5][6] Over the ...
A black hole is a region of spacetime where gravity is so strong that nothing, not even light and other electromagnetic waves, is capable of possessing enough energy to escape it. [2] Einstein 's theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. [3][4] The boundary of no escape is called the event horizon. A black hole has a great ...
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