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Il y a 5 heures · Rock and roll, a popular music craze of the mid-1950s, turned a loud, fast, and sexy set of sounds rooted in urban, black, working class, and southern America into the pop preference as well of suburban, white, young, and northern America. By the late 1960s, those fans and British counterparts made their own version, more politicized and ...
Il y a 1 jour · Sagittarius A*, abbreviated Sgr A* (/ ˈ s æ dʒ ˈ eɪ s t ɑːr / SADGE-AY-star), is the supermassive black hole 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, visually close to the Butterfly Cluster (M6) and Lambda Scorpii.
