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CSI: Sedimentology

INTRODUCTION Shows involving homicides and associated crime scene investigation (CSI) are among the most popular on television. The public is fascinated by the work that goes into collecting and analysing data from crime scenes in the field (Figure 1), whether it be DNA, wounds and bloodstains, footprints, tire tracks, or even evidence of arson. Skeletal analysis can provide a detailed profile, and even a life history, of the victim, and there is almost always a method to estimate time of …


Jacobus Kapteyn at 175: Still expanding our cosmic horizon

January 19th marked the 175th birthday of Dutch astronomer Jacobus Kapteyn. His work and legacy had a profound yet subtle impact on the astronomical community and our understanding of the cosmos. His lasting contributions and methodologies continue to be refined and provide the foundation for ongoing astronomical research and discoveries. After he completed his studies, Kapteyn worked at Leiden Observatory for three years beginning in 1875. He then became the very first professor of Astronomy and Theoretical Mechanics at the …


How do mesoscale eddies modulate CO2 fluxes in the Southern Ocean?

Mesoscale eddies and Southern Ocean carbon sink The Southern Ocean takes up more than a quarter of the anthropogenic CO₂. Its powerful westerly winds, deep overturning circulation, and intense mixing make it a major player in Earth’s climate system. But beneath this large-scale picture lies a world of swirling, dynamic structures that constantly reshape the ocean’s physical and biogeochemical properties: mesoscale eddies. Cyclonic and anticyclonic mesoscale eddies— rotating features with spatial scales of 10–200 km— are far more than background …