U.S. moves to reclassify some types of marijuana as lower risk
Long-awaited policy shift could ease barriers for scientists who study the drug
Allgemein
Thousands of shady ads sell paper authorship for cash, large-scale investigation finds
Results are “only the tip of the iceberg” of shadowy paper-mill marketplace
Sperm carry unexpected genetic messages
Maturing mouse sperm get loaded with full-length messenger RNAs that are transferred to fertilized egg, suggesting a new route for paternal influence
Gene therapy for deafness approved
First treatment for an inherited hearing disorder will be free in the United States
Octopus ‘krakens’ as large as semi-trucks stalked ancient seas
Giant cephalopods may have rivaled marine reptiles as apex predators during the age of the dinosaurs
P-wave magnetism in a metal
Nature Materials, Published online: 05 December 2025; doi:10.1038/s41563-025-02431-3 P-wave magnetism in a metal
Cryogenically self-healing organic crystals
Nature Materials, Published online: 05 December 2025; doi:10.1038/s41563-025-02411-7 Cryogenic conditions limit molecular diffusion, inhibiting self-healing in most molecular systems. Here the authors present an organic molecular crystal capable of autonomous recovery at 77 K due to strong dipole–dipole interactions between aligned molecular layers.
Two-dimensional semiconductor-based active array for high-fidelity spatiotemporal monitoring of neural activities
Nature Materials, Published online: 05 December 2025; doi:10.1038/s41563-025-02430-4 Two-dimensional molybdenum disulfide (MoS2)-based active arrays made by growing wafer-scale trilayer MoS2 directly on a polyimidine substrate achieve high-fidelity spatiotemporal neuronal monitoring in vitro and in living mice.
Ultrafast time-resolved observation of non-thermal current-induced switching in an antiferromagnetic Weyl semimetal
Nature Materials, Published online: 04 December 2025; doi:10.1038/s41563-025-02402-8 This study reveals spatiotemporally resolved current-induced switching in Mn3Sn thin films, identifying both thermal and non-thermal mechanisms depending on the amplitude of the current.
Shining a light on interfacial conductivity
Nature Materials, Published online: 04 December 2025; doi:10.1038/s41563-025-02427-z Ultraviolet illumination dramatically increases electrical conductivity at the interface between two oxide compounds.