One method is Carbon-14 Dating.
radioactive
of course they can by carbon-14 dating.
The redshift of the cosmic microwave background radiation
they see how it reacts to the radiation.
age, ancestry, gender, and race.
many scientist havent determine what cause ice ages.
A fossil contained in the tock
Galileo was the most famous Elizabethan/Jacobean scientist, credited with inventing the telescope among other things. Galileo was the most famous Elizabethan/Jacobean scientist, credited with inventing the telescope among other things.
At age sixteen he started as a scientist.
he became a scientist at the age of 16
They dig a huge hole in the ground and send down a thing that brings up samples and things.
Scientists determine the age of objects or organisms through radiometric dating, which measures the decay of radioactive isotopes, or through dendrochronology, which analyzes the patterns of tree rings to determine age.