Did Earth Get Its Water from Meteor Squirt Guns?
April 28, 2018
You can't just fire bullets at pumice and claim that Earth got its oceans that way.
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Radiation, Mistakes, and Assumptions
August 19, 2016
Three news items about atomic radiation should cause us to beware of academic overstatement.
"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.
Of Molecules and Men
September 27, 2014
Atoms and molecules are tiny but can have a big influence on the habitability of planets and astrobiologists' theories about them.