[ˌæstrəˈkɛmɪst]

Definitions

1. noun

A scientist who studies the chemical composition of celestial objects, such as stars or planets.

“The team of astrochemists used advanced equipment to analyze the atmospheric gases on Mars.”

2. noun

A person who researches the chemistry of space, including the origins of life and the formation of the universe.

“Astrochemists like Carl Sagan have greatly expanded our understanding of the cosmos.”