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What the Apollo Rock Samples Revealed About the Moon

The lunar rocks changed what scientists thought they knew about our satellite, but raised many more questions.

Oldest Animal Cave Painting Baffles Evolutionary Anthropologists

How did cave art of animals appear on opposite sides of the world at the same time? What’s being called the oldest cave painting of an animal has been dated by evolutionary anthropologists at a minimum of 40,000 years old. The baffling thing is that similar cave art in Europe dates to roughly the same […]

Late Heavy Bombardment Myth Is Dying

A favorite tale from the Apollo era, the so-called Late Heavy Bombardment, is being bombarded itself.

Beware of Overconfident Dating Methods

Simplistic presentations about how scientists date rocks overlook the worldview assumptions involved.

Doubts About Dates and Climate

New findings cast doubt on scientists' ability to be certain about their consensus views.

Radiation, Mistakes, and Assumptions

Three news items about atomic radiation should cause us to beware of academic overstatement.

"Fundamental Assumption" in Zircon Dating Called into Question

A commonly-used dating method has been threatened by new findings that undermine assumptions.

Radiocarbon Dating Becoming Unreliable

Your T-shirt could soon contain the same carbon-14 as William the Conqueror's robe from 1066 AD, scientists warn.

Blow to Supernova Nucleogenesis Theory

There's 100 times less of a radioactive element on the ocean floor than expected.

Geology Sale

We need to clear the deck of geology news. Here's a garage sale of interesting headlines, provided "as is" for researchers to pursue further.

Indonesian Cave Paintings Shake Up Art History

Asians were not supposed to be so culturally talented 40,000 years ago, but their cave art shows the same finesse seen in contemporary European caves.

Of Molecules and Men

Atoms and molecules are tiny but can have a big influence on the habitability of planets and astrobiologists' theories about them.

Grand Canyon Age Changes Again

Is the Grand Canyon old or young? Both, geologists are now saying. The latest theory, though, is unlikely to end the 140-year debate.

The Trouble with Zircons

Geologists' favorite tool for dating rocks at millions and billions of years old has revealed problems with interpretation.

Discovery Upsets Geological Dating

For a long time, geologists have used microscopic crystals called zircons as “time capsules” for dating rock strata. The tiny crystals are so durable it was believed they were virtually impermeable. Now, however, inclusions inside the zircons appear to be vastly different in age. This could have drastic effects on how certain formations are dated.
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