Fossilization

Determination of age of Fossils

Who discovered Radioactive carbon(C14) dating method?

Astrobiology

The major concept in astrobiology is

The process of formation of fossil in the rocks is called fossilization.

The age of fossils is determined by radioactive elements present in it. They may be carbon, uranium, lead or potassium.

W.F. Libby

Astrobiology/exobiology is the science which looks for the presence of extra terrestrial life in the universe

The major concept in astrobiology is the habitable zone. The theory explains that any planets can support the existence of life