Stuart Clark is a contemporary English writer and widely read astronomy journalist. His career is devoted to presenting the dynamic and complex world of astronomy to the general public, both as semi-f
Stuart Clark, 2013
Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry to explain their origin and their overall evolutio
Megaliths from Nabta Playa, constructed by Neolithic populations, located in Aswan, Upper Egypt.
The Nebra sky disc found on Mittenberg hill in Germany and dated to c. 1800–1600 BCE.
A Babylonian planisphere (7th century BCE) was an early astronomical instrument. Its use of sexagesimals (e.g. 12, 24, 60, 360) is still being used today through having been broadly adopted for timekeeping and astrometry.
Portrait of Alfraganus in the Compilatio astronomica, 1493. Islamic astronomers collected and translated Indian, Persian and Greek texts, adding their own work.