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.
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.