If you look up the age of Earth on science websites and in publications, you'll generally find an estimate of 4.54 billion years, plus or minus 50 …
How Old Is Earth and How Did Scientists Figure It Out?
In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today. But how? Learn how scientists figured out Earth's age and answers to other questions about the planet we call home.