astrochemistry

As nouns the difference between astrobiology and astrochemistry

is that astrobiology is the study of life anywhere in the universe, including the earth http://sciencenasagov/planetary-science/astrobiology/ while astrochemistry is (chemistry|astronomy) the study of the chemical composition of stars and outer space.

As nouns the difference between taxonomy and astrochemistry

is that taxonomy is the science or the technique used to make a classification while astrochemistry is the study of the chemical composition of stars and outer space.

As a noun astrochemistry

is (chemistry|astronomy) the study of the chemical composition of stars and outer space.

As an adjective astrochemical is

of or pertaining to astrochemistry.