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9 godz. temu · One astronomical unit (about 150 million kilometres; 93 million miles) is defined as the mean distance between the centres of the Sun and the Earth. The instantaneous distance varies by about ± 2.5 million km or 1.55 million miles as Earth moves from perihelion on ~ January 3rd to aphelion on ~ July 4th.
9 godz. temu · The Moon is Earth's only natural satellite.It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have over time synchronized the Moon's orbital period (lunar month) with its rotation period at 29.5 Earth days, causing the same side of the Moon to always face Earth. . The Moon's gravitational pull – and to a ...
9 godz. temu · The physical universe is defined as all of space and time (collectively referred to as spacetime) and their contents. Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space. The universe also includes the physical laws that influence energy and matter, such ...
9 godz. temu · Carnegie Mellon University (CMU) is a private research university in Pittsburgh, Pennsylvania.The institution was established in 1900 by Andrew Carnegie as the Carnegie Technical Schools.In 1912, it became the Carnegie Institute of Technology and began granting four-year degrees. In 1967, it became Carnegie Mellon University through its merger with the Mellon Institute of Industrial Research ...
1 dzień temu · Guam (/ ˈ ɡ w ɑː m / ⓘ GWAHM; Chamorro: Guåhan [ˈɡʷɑhɑn]) is an organized, unincorporated territory of the United States in the Micronesia subregion of the western Pacific Ocean. Guam's capital is Hagåtña, and the most populous village is Dededo.It is the westernmost point and territory of the United States, reckoned from the geographic center of the U.S.
1 dzień temu · Arizona (/ ˌ ær ɪ ˈ z oʊ n ə / ⓘ ARR-ih-ZOH-nə; Navajo: Hoozdo Hahoodzo [hoː˥z̥to˩ ha˩hoː˩tso˩]; O'odham: Alĭ ṣonak [ˈaɭi̥ ˈʂɔnak]) is a landlocked state in the Southwestern region of the United States.Arizona is part of the Four Corners region with Utah to the north, Colorado to the northeast, and New Mexico to the east; its other neighboring states are Nevada to the ...
9 godz. temu · Robert F. Kennedy Memorial Stadium, commonly known as RFK Stadium and originally known as District of Columbia Stadium, is a defunct multi-purpose stadium in Washington, D.C. It is located about two miles (3 km) due east of the U.S. Capitol building, near the west bank of the Anacostia River and next to the D.C. Armory.Opened in 1961, it was owned by the federal government until 1986.
