The Collurania Observatory, also Teramo Observatory,, is an astronomical observatory located in Teramo, in Abruzzo region of central Italy. It was founded by Vincenzo Cerulli in 1890, who was later ho
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.