Mars Youth Shows in New Study
July 18, 2022
The basis for believing Mars is billions of years old and had oceans like the Earth comes under fire in a new study.
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Crater Count Dating: Self-Secondaries Reduce Age Estimates
October 30, 2018
A standard method for inferring the ages of planetary surfaces continues to be plagued by bad assumptions.
Time to Revisit the Lunar Dust Problem?
July 18, 2018
How deep should lunar dust get over billions of years? Opinions have vacillated between extremes, but a new study might open up the debate again.