GALAH Project Unveils Chemical Fingerprints of Nearly One Million Stars

The ten-year survey by Australian astronomers marks a milestone in understanding the Milky Way's history and evolution.

Researchers from the ARC Centre of Excellence in All Sky Astrophysics in 3 Dimensions (ASTRO 3D) have released the chemical spectra of almost one million stars.
The data release coincides with the 50th anniversary of the Anglo-Australian Telescope, which played a key role in the GALAH survey.
These chemical fingerprints help scientists determine the ages and origins of stars, enhancing our understanding of the Milky Way's formation.
The findings suggest some stars may have consumed orbiting planets, as indicated by specific chemical markers in their spectra.
The GALAH dataset is expected to aid in the development of artificial intelligence tools for future astronomical research.