Rock is a form of popular music that emerged in the 1950s and that by the end of the 20th century was the world’s dominant form of popular music. It originated in the United States and spread …

Oct 2, 2025 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and …

Standing Rock protests, campaign undertaken in North Dakota in 2016 and 2017 to halt the construction of the Dakota Access pipeline.

The Dome of the Rock is a shrine in Jerusalem built in the late 7th century CE that is the oldest extant Islamic monument in the world, believed to be the site of Muhammad’s ascent to …

First, that rock is so broad a musical category that in practice people organize their tastes around more focused genre labels: the young Presley was a rockabilly, the Beatles a pop group, …

In Britain, as in the rest of Europe, rock and roll had an immediate youth appeal—each country soon had its own Elvis Presley—but it made little impact on national music media, as …

Sep 17, 2025 · Igneous rocks are formed from the solidification of magma, which is a hot (600 to 1,300 °C, or 1,100 to 2,400 °F) molten or partially molten rock material. Earth is composed …

Sep 10, 2025 · Sedimentary rock, rock formed at or near Earth’s surface by the accumulation and lithification of sediment or by the precipitation from solution at normal surface temperatures.

Sep 28, 2025 · Rock Hudson, American actor noted for his good looks and movie roles during the 1950s and ’60s, including Magnificent Obsession, Giant, and Pillow Talk, and for the TV series …

Marble is formed when limestone or dolomite rock recrystallizes through heat, pressure, and chemical changes, a process called metamorphism.