stellar parallax

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9 of the World’s Deadliest Mammals

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

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Bar graph of the United States Death Toll during major events. Infogram chart.

U.S. Death Toll During Major Events

Statue of Liberty in front of the skyline of Manhattan, New York City, New York.

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Lead image for "A Timeline of the World in 8 Maps"

A Timeline of the World in 8 Maps

stellar parallax

astronomy

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major reference

In parallax: Stellar parallax
The stars are too distant for any difference of position to be perceptible from two places on Earth’s surface, but, as Earth revolves at 149,600,000 km from the Sun, stars are seen from widely different viewpoints during the year. The effect on their…
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