Astronomy in medieval Islam
Islamic astronomy comprises the astronomical developments made in the Islamic world, particularly during the Islamic Golden Age (8th–15th centuries), and mostly written in the Arabic language. These d...
Master of the Telescope: How Galileo Galilei Unlocked The Doors to the Universe
The Father of modern science, Galileo decides to drastically improve a two-year-old invention, the telescope, and point it to the sky; his expert recordings and extraordinary discoveries will shake ou...
4977 BC Universe Is Created, According To Kepler - April 27
On this day in 4977 B.C., the universe is created, according to German mathematician and astronomer Johannes Kepler, considered a founder of modern science. Kepler is best known for his theories expla...
Photographic Plates of the Stars, Taken by Edwin Hubble, George Ellery Hale, Walter Baade, and More
On a clear Christmas morning atop Mount Wilson, before the first tentacles of dawn struck the Los Angeles sprawl 5,700 feet below,…
History of astronomy
Official trailer of the PBS documentary 400 Years of the Telescope. Available for purchase from ShopPBS.org or Apple iTune. Stream on Netflix.com.
Islamic astrology
The medieval Arabs took a keen interest in the study of heavens: partly because they considered the celestial bodies to be divine, partly because the dwellers of desert-regions often travelled at nigh...
Islamic cosmology
Islamic cosmology refers to cosmology in Islamic societies. It is mainly derived from the Qur'an, Hadith, Sunnah, and current Islamic as well as other pre-Islamic sources. The Qur'an itself mentions s...
Maragheh observatory
Maragheh observatory (Persian: رصدخانهٔ مراغه‎), was an institutionalized astronomical observatory which was established in 1259 CE under the patronage of the Ilkhanid Hulagu and the directorshi...
Ulugh Beg Observatory
The Ulugh Beg Observatory is an observatory in Samarkand, Uzbekistan. Built in the 1420s by the Timurid astronomer Ulugh Beg, it is considered by scholars to have been one of the finest observatories ...
Istanbul observatory of Taqi al-Din
The Istanbul observatory of Taqi ad-Din, founded in Istanbul by Taqi ad-Din Muhammad ibn Ma'ruf in 1577, was one of the largest astronomical observatories to be built in the Islamic world. However, it...
Zij
Zīj (Persian: زيج‎) is the generic name applied to Islamic astronomical books that tabulate parameters used for astronomical calculations of the positions of the Sun, Moon, stars, and planets. ...
History of astronomy
Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical, and astrological beliefs and practices of pre-his...
Surya Siddhanta
The Surya Siddhanta is one of the oldest treatises (siddhanta) in Hindu astronomy.The extant text as edited by Burgess (1860) is medieval (c. 12th century), but it is clearly based on older versions,...
Phalguni
Phalguni (Sanskrit for "reddish, red") may be:Famous people with this name include:Phalguni Pathak, a famous Indian singer.
Celestial Matters
Celestial Matters is a science fantasy novel, set in an alternate universe with different laws of physics, written by Richard Garfinkle and published by Tor Books in 1996. It is a work of alternate h...
Astrology in Sri Lanka
Astrology consists of several pseudoscientific systems of divination based on the premise that there is a relationship between astronomical phenomena and events in the human world. Many cultures have ...
Great Year
The term Great Year has a variety of related meanings. It is defined by NASA as "The period of one complete cycle of the equinoxes around the ecliptic, about 25,800 years […] also known as [a] Platoni...
Mula (astrology)
Mula (The Root) (Devanagari मूल) (Tamil: மூலம்) is the 19th nakshatra or lunar mansion in Vedic astrology and corresponds to the stars ε, ζ, η, θ, ι, κ, υ, λ, μ and ν Scorpii in the tail/sting of...
Cheonsang Yeolcha Bunyajido
Cheonsang Yeolcha Bunyajido is a 14th-century Korean star map, copies of which were spread nationwide in the Joseon Dynasty. The name is sometimes translated as "chart of the constellations and the r...
Landscape zodiac
A landscape zodiac (or terrestrial zodiac) is a map of the stars on a gigantic scale, formed by features in the landscape, such as roads, streams and field boundaries. Perhaps the best known alleged e...
Paksa
Paksha (or pakṣa: Sanskrit: पक्ष), refers to a fortnight or a lunar phase in a month of the Hindu lunar calendar.Literally meaning "side", a paksha is the period either side of the Full Moon Day (...
The Indestructibles
The Indestructibles (Egyptian ikhemu-sek – literally "the ones not knowing destruction") was the name given by Ancient Egyptian astronomers to two bright stars which, at that time, could always ...
Antikythera mechanism
The Antikythera mechanism (/ˌæntɨkɨˈθɪərə/ ANT-i-ki-THEER-ə or /ˌæntɨˈkɪθərə/ ANT-i-KITH-ə-rə) is an ancient analog computer designed to predict astronomical positions and eclipses for calendrical and...
Fifth planet (hypothetical)
In the history of astronomy, a handful of solar system bodies have been counted as the fifth planet from the Sun. Under the present definition of a planet, this celestial body is Jupiter.
There ar...
Swati the Star
Swati (Tamil: சுவாதி) (Telugu: కరువలిరిక్క) (Su+ati in Sanskrit meaning very beneficent) is the Sanskrit name of Arcturus, and also of the nakshatra (lunar mansion) associated with Arcturus in...
Yuktibhāṣā
Yuktibhāṣā (Malayalam: യുക്തിഭാഷ; "Rationale in the Malayalam/Sanskrit language") also known as Gaṇitanyāyasaṅgraha ("Compendium of astronomical rationale"), is a major treatise on mathematics and...
Anuradha
Anuradha may be: