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Observations of a giant flare associated with the starburst galaxy NGC 253 suggest that the flare is probably associated with relativistic plasma in the magnetic field of a magnetar.
Haematopoietic stem cells show progressive functional decline with age that can be reversed by stimulation of chaperone-mediated autophagy in old mice and aged humans.
Electrophysiology combined with correlated light and electron microscopy confirms the long-standing assumption that the size of a synapse is proportional to its strength, and reveals that neocortical synapses may have greater computational capacity than thought.
Dire wolves split from living canids around 5.7 million years ago and originated in the New World isolated from the ancestors of grey wolves and coyotes, which evolved in Eurasia and colonized North America only relatively recently.
Iceberg-trajectory models along with multi-proxy evidence from sediment cores from the Indian Ocean show that northward shifts in Antarctic iceberg melt redistributed freshwater in the Southern Ocean during the Pleistocene.
In mice, oral tolerance to food antigens can break down after enteric infection, and this leads to food-induced pain resembling irritable bowel syndrome in humans.
A bioinformatics pipeline to identify tandem repeat mutations is developed and used to characterize precise changes in repeat copy number associated with autism spectrum disorder.
Studies using mouse and non-human primate models identify the innate immune regulator STING—acting via type I interferons—as a key regulator of nociception, suggesting new targets for the treatment of chronic pain.
Infrared absorption by a thick CO crystal produces many vibrational quanta that can be transported and concentrated at a salt interface to drive orientational isomerization of CO molecules with enhanced efficiency.
Analysis of bronchoalveolar lavage fluid samples from patients with SARS-CoV-2-induced respiratory failure suggests that SARS-CoV-2 infects alveolar macrophages to cause release of T cell chemoattractants, thereby inducing local inflammatory cytokine release and further T cell activation, ultimately resulting in a positive feedback loop that drives alveolar inflammation.
A bilayer Fermi–Hubbard model is realized in two coupled two-dimensional layers of fermionic ultracold atoms by tuning the interlayer coupling strength to create a crossover between magnetic orderings.
The rate of scale regeneration in zebrafish is controlled by the frequency of rhythmic travelling waves of Erk activity, which are broadcast from a central source to induce ring-like patterns of osteoblast tissue growth.
A subpopulation of astrocytes characterized by the expression of LAMP1 and TRAIL limits inflammation in the central nervous system through a mechanism involving the microbiota-modulated expression of IFNγ in meningeal natural killer cells.
Analysis of dust from marine sediments in the North Pacific shows that warm periods during the Pliocene witnessed weaker and more poleward westerlies than during subsequent glacial periods.
New reference genomes of the two extant monotreme lineages (platypus and echidna) reveal the ancestral and lineage-specific genomic changes that shape both monotreme and mammalian evolution.
In a mouse model of progeria, an adenine base editor delivered with adeno-associated virus corrects the pathogenic mutation in LMNA, rescues vascular pathology and markedly extends the lifespan of the mice.
A quantum network that combines 700 fibre and two ground-to-satellite links achieves quantum key distribution between more than 150 users over a combined distance of 4,600 kilometres.
Machine learning models enable atomistic simulations of phase transitions in amorphous silicon, predict electronic fingerprints, and show that the pressure-induced crystallization occurs over three distinct stages.