Thousands of years ago, Chinese astronomers used an ancient record of constellations and their coordinates to study the sky.

The oldest star chart in the world was made in China more than 2,300 years ago, a hotly debated preprint study finds. Researchers at the Chinese National Astronomical Observatories analyzed the "Star ...

For more than two thousand years, people have mapped the stars. But a new study claims one of the world’s oldest surviving ...