How Old Is Planet Earth?

Biblical Creationists who think the Bible is literally true and 100% correct believe that Earth is about 6,000 years old.
Most astronomers, geologists and biologists think the Earth is about 4.54 billion years old.
Who is right?

C. Stuart Hardwick** answers:
“Not the Biblical Creationists!
“The scientists report that the Earth is 4.54 billion years old, because all the actual evidence says the Earth is 4.54 billion years old.”

(For sources, see Wikipedia’s article, Age of the Earth.)

  • “From the 1770s to the 1890s, Earth’s age could only be guessed at (scientifically speaking) based on a crude understanding of natural processes such as geologic change, planetary cooling, and ocean salinity balance, so estimates ranged wildly from a few million to a few billion years.
  • “In 1905, physicist Ernest Rutherford suggested that the age of the Earth could be estimated by measuring the amount of lead in uranium minerals. His estimate was around 500 million years but was only a swag intended to prod geologists into the atomic age.
  • “1920s: The geologist Arthur Holmes used the radioactive decay of lead and uranium to estimate that the Earth was around 4.6 billion years old. This estimate is still accepted today, although the margin of error has been refined over time.
  • “1990s: The development of new radiometric dating techniques, such as uranium-lead dating and samarium-neodymium dating, allowed scientists to estimate the age of the Earth with greater precision. These methods have estimated the age of the Earth to be around 4.543 billion years old, with a margin of error of around 1%.”

“Those who attempt to prove an absurdly recent age for the oceans by estimating salt and mineral (e.g., nickel) concentrations are deliberately ignoring the fact that we know from direct measurements that these salts and minerals are removed from seawater over geologic times by numerous processes, including sedimentation and subduction for a start.”

“In other words, scientists insist the Earth is 4.54 billion years old because it is.”

[** C. Stuart Hardwick is a regular in Analog Science Fiction & Fact magazine, a winner of the prestigious Writers of the Future contest, and a six-time Jim Baen Memorial award honoree.
In addition to science fiction, he writes about science for numerous publications, and his work has been translated into a dozen languages.]

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