Several recent possible counterexamples to the Chronology Protection Conjecture are critically examined. The “adapted” Rindler vacuum state constructed by Li and Gott for a conformal scalar field in Misner space is extended to nonconformally coupled and self-interacting scalar fields. For these fields, the vacuum stress-energy always diverges on the chronology horizons. The divergence of the va...

Baddeleyite (monoclinic; m-ZrO2) is a widespread accessory phase within shergottites. However, the effects of shock loading on baddeleyite U-Pb isotopic systematics, and therefore its reliability as geochronometer highly shocked lithologies, are less well constrained. To investigate metamorphism chronology, we have conducted high-resolution microstructural analysis in-situ measurements for enri...

Numerous loess/paleosol sequences (LPS) in the Carpathian Basin span period of Marine Isotope Stage (MIS) 2 and last glacial maximum (LGM). Nevertheless, only two known records—Madaras Dunaszekcső—preserve highly resolved records with absolute chronologies minimal uncertainties, which enable meaningful assessment feedbacks short-term climatic fluctuations over this period. The Madaras profile i...