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Jupiter's Young Moons
In 1610, Galileo Galilei aimed his telescope at Jupiter and discovered the four largest of the planet’s 95 known moons. He recognized them as...
Revisiting the Isochron Age Model, Part 1
Radioactive dating is based on the decay rate of a starting radioactive isotope (the parent) into its stable counterpart (the daughter). An age is assigned...
Lava Flows Disqualify Lake Spillover Canyon Theory
There has been considerable debate among scientists over the origin of Grand Canyon. We all agree it was formed by the removal of some 1,000 cubic miles...