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Thirteen Towers solar observatory, Chankillo, Peru Antikythera Mechanism, a geared astronomical computer that calculates lunar and solar eclipses, the position of the Sun and the Moon the lunar phase (age of the moon), has several lunisolar calendars, including the Olympic Games calendar.
1672 — Laurent Cassegrain, produces a design for a reflecting telescope using a paraboloid primary mirror and a hyperboloid secondary mirror. The design, named 'Cassegrain', is still used in astronomical telescopes used in observatories in 2006. 1674 — Robert Hooke produces a reflecting telescope based on the Gregorian design.
The 10-meter Keck telescope on Mauna Kea, Hawaii, is completed. The first revolutionary new wave of telescopes, the Keck's main mirror is made of 36 six-sided segments, with computers to control their alignment. New optical telescopes also make use of interferometry – improving resolution by combining images from separate telescopes.
NASA's James Webb Space Telescope (JWST) has captured photos of one of the earliest supernovas ever seen, with features appearing like grains and knots found in a cut of wood. "Once upon a time ...
Telescope History Archived 2021-02-14 at the Wayback Machine, NASA Official Website, accessed 02/09/2019 History of the Telescope , accessed 02/09/2019 List of astronomical observatories and telescopes , Encyclopedia Britannica, 02/09/2019
With a Galilean telescope, the observer could see magnified, upright images on the Earth—what is commonly known as a spyglass—but also it can be used to observe the sky, a key tool for further astronomical discoveries. Galileo showing the Doge of Venice how to use the telescope (fresco by Giuseppe Bertini) Ole Rømer at work
James Webb Space Telescope pics The Whirlpool Galaxy lies about 27 million light-years away and contains hundreds of billions of stars. The stars are spread out into a pinwheel shape clustered ...
NASA telescopes have captured two ghastly galaxies that look like a creepy pair of staring “blood-soaked” eyes floating in space.. The spiral galaxies, which are located 114 million light ...
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