It is the brightest point in a constellation first described 2,000 years ago and was the first distant star captured in a ...

Stonehenge, the iconic megalithic monument in England, is closely linked to the winter solstice. The builders of the monument ...

Credit: Elrond /CC BY-SA 4.0 An early astrolabe was invented in the Hellenistic civilization by Apollonius of Perga between 220 and 150 BC, but it was often attributed to Hipparchus. The device, a ...

Greek astronomer and mathematician Hipparchus is often credited with the invention of trigonometry, but evidence has exposed that the majority of the numbers he based his theories on came from ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory.

His book A Scheme of Heaven describes how a particularly fine observation made by Hipparchus in 130 BC depended on his going back over records that must have been hundreds of years old.

According to NASA, on Oct. 14, 2024, the Europa Clipper was launched from NASA’s Kennedy Space Center in Florida. Launched in ...