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The first major Muslim work of astronomy was Zij al-Sindhind, produced by the mathematician Muhammad ibn Musa al-Khwarizmi in 830. It contained tables for the movements of the Sun, the Moon, and the planets Mercury, Venus, Mars, Jupiter and Saturn. The work introduced Ptolemaic concepts into Islamic science, and marked a turning point in ...
25.1. 2. First extrasolar planet discovered by indirect imaging (visible light) Found in 2020 to be a debris cloud from a collision of asteroids rather than a planet. 2015 NameExoWorlds. Tadmor. Ancient Palmyrene and modern Arabic name for Palmyra.
Currently most of the objects of mass between 10 9 kg to 10 12 kg (less than 1000 teragrams (Tg)) listed here are near-Earth asteroids (NEAs). The Aten asteroid 1994 WR12 has less mass than the Great Pyramid of Giza, 5.9 × 10 9 kg. For more about very small objects in the Solar System, see meteoroid, micrometeoroid, cosmic dust, and ...
The works of Ibn Khordadbeh (c. 870) and Jayhani (c. 910s) were at the basis of a new Perso-Arab tradition in Persia and Central Asia. [10] The exact relationship between the books of Khordadbeh and Jayhani is unknown, because the two books had the same title, have often been mixed up, and Jayhani's book has been lost, so that it can only be approximately reconstructed from the works of other ...
This is a list of fictional countries from published works of fiction (books, films, television series, games, etc.). Fictional works describe all the countries in the following list as located somewhere on the surface of the Earth as we know it – as opposed to underground, inside the planet, on another world, or during a different "age" of the planet with a different physical geography.
Earth orbits the Sun, making Earth the third-closest planet to the Sun and part of the inner Solar System. Earth's average orbital distance is about 150 million km (93 million mi), which is the basis for the astronomical unit (AU) and is equal to roughly 8.3 light minutes or 380 times Earth's distance to the Moon .
The history of Earth is divided into four great eons, starting 4,540 mya with the formation of the planet. Each eon saw the most significant changes in Earth's composition, climate and life. Each eon is subsequently divided into eras, which in turn are divided into periods, which are further divided into epochs . Eon.
According to the Pew Research Center in 2017, the largest Muslim population in a country is in Indonesia, a country home to 12.7% of the world's Muslims, followed by Pakistan (11.1%), India (10.9%) and Bangladesh (9.2%). [ 8][ 19] About 20% of Muslims live in the Arab world. [ 20]