Astronomy: Did you mean...?

Western astrology refers to a form of divination based on the motion of astronomical objects such as stars or planets. The belief that astronomical objects are divine or influence events on Earth is found in many cultures, but...

Nicolaus Copernicus (1473-1543 CE) was a Polish astronomer who famously proposed that the Earth and other planets revolved around the Sun in a heliocentric system and not, as then widely thought, in a geocentric system where...

The Antikythera mechanism (also known as the Antikythera Device), dated to the late 2nd century/early 1st century BCE (roughly 205-60 BCE) is understood as the world's first analog computer, created to accurately calculate...

The term science comes from the Latin word scientia, meaning "knowledge". It can be defined as a systematic attempt to discover, by means of observation and reasoning, particular facts about the world, and to establish laws connecting...

The Romans assimilated earlier Greek science for their own purposes, evaluating and then accepting or rejecting that which was most useful, much as they did in other fields such as warfare, art, and theatre. This assimilation of...

Claudius Ptolemy (c. 100 to c. 170 CE) was an Alexandrian mathematician, astronomer, and geographer. His works survived antiquity and the Middle Ages intact, and his theories, particularly on a geocentric model of the universe...

Edmond Halley (1656-1742) was an English astronomer, mathematician, and cartographer. Halley's Comet is named after him since he accurately predicted its return in 1758. One of the early globetrotting scientists, Halley led several...

Johannes Hevelius (1611-1687) was a Polish astronomer based in Danzig (Gdańsk). He worked from his own privately funded observatory, creating maps of the Moon's surface, discovering the first variable star, and spotting several...

Mesopotamian science and technology developed during the Uruk period (circa 4000-3100 BCE) and the Early Dynastic period (circa 2900-2350/2334 BCE) of the Sumerian culture of...

Galileo Galilei (1564-1642) was an Italian mathematician, physicist, astronomer, and natural philosopher. He created a superior telescope with which he made new observations of the night sky, notably that the surface of the Moon...