The gift shop at a science museum sells lollipops that are made to look like the planets. Each lollipop is shaped like a sphere and has a radius of 12 mm.

The volume of a sphere can be calculated using the formula V = (4/3) π r^3, where r is the radius of the sphere.

Given that the radius of each lollipop is 12 mm,
the volume of each lollipop can be calculated as follows:

V = (4/3) * 3.14 * 12^3
V = (4/3) * 3.14 * 1728
V = 7234.56 mm^3

Therefore, the volume of each lollipop is approximately 7234.56 mm^3.