Geocentric model Geocentric model In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a superseded description of the Universe with Earth at the center. Under the geocentric model, the Sun, Moon, stars, and planets all orbited Earth. The geocentric model served as the predominant description of the cosmos in many ancient civilizations, such as those of Aristotle and Ptolemy. Two observations supported the idea that Earth was the center of the Universe. First, from anywhere on Earth, the Sun appears to revolve around Earth once per day. While the Moon and the planets have their own motions,
The Places in Between The Places in Between "The Places in Between" is a travel narrative by British writer and Member of Parliament Rory Stewart, detailing his solo walk across north-central Afghanistan in 2002. Stewart arrives in Afghanistan in January 2002, beginning his journey in Herat and proceeding on foot to Kabul. He is initially accompanied by two armed guards, Qasim and Abdul Haq, at the insistence of Governor Yuzufi but travels without human company for most of his walk, accompanied only by his dog, Babur. On his journey, Stewart encounters many of Afghanistan’s most notable historical sites, including the Minaret of Jam, the