Climate Change Is Destroying Unique Archives of European History Along with Glacial Ice Irretrievably lost: Unique evidence of European history is stored in the glaciers of the Alps – from traces of early mining and metalworking to the smoke from slash-and-burn agriculture. But these icy archives are disappearing, as researchers on the Weißseespitze in the Ötztal Alps have discovered: In 2019, they were still able to extract a ten-meter-long ice core there; by 2025, only 5.50

The Social Life of Bull Sharks Is More Complex Than You Think Fin to fin, these two bull sharks glide through the water: In front swims the powerful "Chunky," closely followed by the younger "Lady Lazarus." The two predators are apparently not just members of their own species, but something like friends. For a long time, sharks were considered solitary hunters and loners without social bonds. But new observations show that they repeatedly seek out certain members of their sp

Analyses Illuminate the Pace and Mechanism of Oxytocin Release in the Brain A densely branched network of fine, luminous structures permeates this image. Two color systems are discernible: green and red signaling pathways that partially overlap and bundle together. These are neuronal circuits in the mouse brain through which two important neurotransmitters are distributed: Green denotes oxytocin pathways, red vasopressin networks. Signaling pathways of the bonding hormone oxy

In Search of the Shortest Route A tangle of bright red cables encircles an unassuming chip in the center. This is the Advantage2 quantum annealer from D-Wave. This quantum computer specializes in optimization problems: tasks that require weighing countless possibilities against each other and quickly push even modern supercomputers to their limits. The Advantage2 quantum annealer from D-Wave is designed to solve complex optimization problems. © D-Wave A simple example of an o

EAST Fusion Facility Exceeds Fusion Plasma Density Limit New Plasma Regime: The Chinese fusion reactor EAST has overcome a crucial density limit for fusion plasma, achieving the so-called density-free regime for the first time. This allows the plasma to be compressed to a higher density without dangerous instabilities occurring near the reactor vessel walls. The EAST fusion facility thus paves the way for the extreme conditions necessary for nuclear fusion. The EAST (Experime

Neurons Store Memory Content and Context Separately Neural division of labor: Our brain doesn't store past experiences and their context together, but rather in two separate groups of brain cells, as an experiment reveals. Only the combination of both creates a complete memory. Content neurons, therefore, store only the information itself, such as an object or a person. Context neurons, on the other hand, only remember the circumstances. This division of labor makes our memor