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Astronomy was used by early cultures for a variety of reasons. These include timekeeping, navigation, spiritual and religious practices, and agricultural planning. Ancient astronomers used their observations to chart the skies in an effort to learn about the workings of the universe.
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...
Mayan astronomers discover an 18.7-year cycle in the rising and setting of the Moon.From this they created the first almanacs – tables of the movements of the Sun, Moon, and planets for the use in astrology.
However, the lack of clarity around the notion of zero made their system highly ambiguous (e.g. 13 200 would be written the same as 132). [9] Early 2nd millennium BC: Similar triangles and side-ratios are studied in Egypt for the construction of pyramids, paving the way for the field of trigonometry. [10]
The Wilson Chronology of Science and Technology: A Record of Scientific Discovery and Technological Invention, from the Stone Age to the Information Age. New York : H.W. Wilson. ISBN 978-0-8242-0933-9. Rushdī Rāshid; Régis Morelon (1996). Encyclopedia of History of Arabic Science: Astronomy- theoretical and applied. Psychology Press.
Italian polymath Galileo Galilei was an early user and made prolific discoveries, including the phases of Venus, which definitively disproved the arrangement of spheres in the Ptolemaic system. Galileo also discovered that the Moon was cratered, that the Sun was marked with sunspots , and that Jupiter had four satellites in orbit around it. [ 13 ]
Wayne State University department of physics and astronomy professor and chair Ed Cackett sits with solar telescopes in his office at the Detroit campus on Friday, March 22, 2024.
2020 — On October 8, 2020, scientists released the largest and most detailed 3D maps of the Universe, called "PS1-STRM". The data of the MAST was created using artificial neural networks and combines data from the Sloan Digital Sky Survey and others. Users can query the dataset online or download it in its entirety of ~300GB.