Massive ‘bullseye’ in Australian desert is evidence of an ancient reef

A strange doughnut-shaped mound in a desert in southern Australia recently made a surprise appearance in high-resolution satellite images. The odd formation, which from space resembles a big bullseye, is likely the remains of an ancient reef, made by microbes and left over from a time when a vast ocean covered the now-arid environment, new […]

Australian mathematician discovers applied geometry engraved on 3,700-year-old tablet | Archaeology

An Australian mathematician has discovered what may be the oldest known example of applied geometry, on a 3,700-year-old Babylonian clay tablet. Known as Si.427, the tablet bears a field plan measuring the boundaries of some land. The tablet dates from the Old Babylonian period between 1900 and 1600 BCE and was discovered in the late […]