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"Extraordinary" Radiocarbon Anomaly Found in Tree Rings
January 19, 2017
A tree ring sample from a bristlecone pine reveals something weird happened to the sun around 5480 BC.
"Fundamental Assumption" in Zircon Dating Called into Question
February 15, 2016
A commonly-used dating method has been threatened by new findings that undermine assumptions.
Denisovan Genome Reveals Interbreeding With Modern Humans
September 1, 2012
With the publishing of the Denisovan genome, the genetic profile of interfertile humans has widened considerably.
Planetary Radiometric Dates 1/3 Younger
May 1, 2012
The half-lives of radioactive isotopes may not be as well-known as thought. One decay rate frequently used to date solar system objects had to be adjusted down to 66% of its former assumed value, impacting theories of planet formation.