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Radiocarbon Calibration Is Stretchy

The latest calibration curve for radiocarbon dating is raising eyebrows. Will it upset what is "known" about the past?

Learn Your Body Toolkit

Here are some tricks of living in a human body that you may not know about, because they happen automatically.

"Extraordinary" Radiocarbon Anomaly Found in Tree Rings

A tree ring sample from a bristlecone pine reveals something weird happened to the sun around 5480 BC.

How Rocks Can Look Older Than They Are

Researchers find that the most common dating method can produce "spuriously old" dates.

What Is the Temperature of the Earth?

The news are all reporting 2014 as the hottest year on record, but no one is asking how such a measurement can be made without bias.
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