How can carbon 14 be used in astronomy?

Carbon-14 is a radioactive isotope of carbon that might exist as a

billionth part in organic remains in archaeological sites.

This process of finding the age of the material is called carbon

dating..

The models used are called exponential decay models. The

parameters ( usually 2) are decided from the current decay levels.

There are limitations, like within million years of age, for this dating..

Reference: wiki carbon 14

In astronomy, this can be used for dating of materials on the Earth

and other space bodies. Unmanned spacecrafts, landing on such

distant solar orbiters, like planets, asteroids and comets, could be

directed from here, to scoop samples and do experiments on dating

of the organic materials, if any.,

Through the technique of carbon dating, which is based on the decay of carbon-14 isotopes over time, astronomers can determine the ages of celestial objects, such as stars and galaxies, by measuring the amount of carbon-14 present in them. Carbon-14 dating allows astronomers to estimate the age of objects in space by analyzing the ratio of carbon-14 to stable carbon isotopes. However, because carbon-14 has a relatively short half-life of approximately 5,730 years, its use is usually restricted to objects within tens of thousands of years old.