How have scientists used relative dating to study the geologic history of other planets, such as Venus?

I think you are talking about radioactive aging? (see explanation)

Explanation:

We have rocks from the Moon (brought back), meteorites, and rocks that we know came from Mars. We can then use radioactive age dating in order to date the ages of the surfaces.

Have a great day <3

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides