Why Nature is updating its advice to authors on reporting race or ethnicity p.219

Nature’s updated advice is a small step towards ensuring that research does not inadvertently end up harming under-represented groups.

doi: 10.1038/d41586-023-00973-7

COVID-origins data from Wuhan market published: what scientists think p.225

First peer-reviewed analysis of the Chinese swabs confirms animal DNA was present in samples that tested positive for SARS-CoV-2.

doi: 10.1038/d41586-023-00998-y

How virtual models of the brain could transform epilepsy surgery p.227

An ongoing clinical trial aims to test whether digital models built using brain-scan data can help to identify where seizures originate.

doi: 10.1038/d41586-023-00990-6

Long COVID exercise trials proposed by NIH raise alarm p.228

Advocates ask the US biomedical agency to rethink the design of its RECOVER initiative, citing possible harm and funding waste.

doi: 10.1038/d41586-023-00900-w

Stressed plants ‘cry’ — and some animals can probably hear them p.229

Microphones capture ultrasonic crackles from plants that are water-deprived or injured.

doi: 10.1038/d41586-023-00890-9

Light waves squeezed through ‘slits in time’ p.230

A mirror that rapidly turns on and off alters the waveform of a reflected laser pulse in a way characteristic of Thomas Young’s classic double-slit experiment.

doi: 10.1038/d41586-023-00968-4

Mars rocks await a ride to Earth — can NASA deliver? p.230

The stakes are high as the agency contemplates the technological and financial hurdles ahead for its sample-return mission.

doi: 10.1038/d41586-023-00927-z

Biden’s science adviser on the US push to compete with China p.232

doi: 10.1038/d41586-023-00919-z

Three ways to solve the plastics pollution crisis p.234

doi: 10.1038/d41586-023-00975-5

The Arctic after dark: a secret world of hidden life p.238

doi: 10.1038/d41586-023-00976-4

Earth’s molten youth had long-lasting consequences p.251

A model shows that key physical properties of our planet, from the density of its iron core to its water, could have been set by interactions between a magma ocean and an early hydrogen atmosphere that was lost to space.

doi: 10.1038/d41586-023-00979-1

Swift progress for robots over complex terrain p.252

A four-legged robot has learnt to run on sand at a faster pace than humans jog on solid ground. With low energy use and few failures, this rapid robot shows the value of combining data-driven learning with accurate, yet simple, models.

doi: 10.1038/d41586-023-00710-0

Mix-and-match tools for protein injection into cells p.254

An injection system from bacteria has been re-engineered in an effort to develop a programmable system for protein delivery into cells. Its customizability opens the door to a multitude of biomedical applications.

doi: 10.1038/d41586-023-00847-y

Elusive excited states identified from cutting-edge molecular movies p.255

A molecular process called singlet fission might boost solar-cell efficiency, but the mechanism must first be determined. A technique that probes molecules undergoing this process finally reveals the excited states involved.

doi: 10.1038/d41586-023-00980-8

A metabolic vulnerability of pancreatic cancer p.257

Unusual metabolic pathways used by cancer cells offer possible targets for the development of clinical treatments. One such pathway, involving molecules called polyamines, has been found for pancreatic cancer.

doi: 10.1038/d41586-023-00848-x

Foundation models for generalist medical artificial intelligence p.259

doi: 10.1038/s41586-023-05881-4

A population of red candidate massive galaxies ~600 Myr after the Big Bang p.266

doi: 10.1038/s41586-023-05786-2

Giant magnetoresistance of Dirac plasma in high-mobility graphene p.270

doi: 10.1038/s41586-023-05807-0

Orbital-resolved observation of singlet fission p.275

doi: 10.1038/s41586-023-05814-1

Separating single- from multi-particle dynamics in nonlinear spectroscopy p.280

doi: 10.1038/s41586-023-05846-7

Dehydration of a crystal hydrate at subglacial temperatures p.288

doi: 10.1038/s41586-023-05749-7

Mechanistic formulation of inorganic membranes at the air–liquid interface p.293

doi: 10.1038/s41586-023-05809-y

Crop switching can enhance environmental sustainability and farmer incomes in China p.300

doi: 10.1038/s41586-023-05799-x

Earth shaped by primordial H₂ atmospheres p.306

doi: 10.1038/s41586-023-05823-0

Interhemispheric competition during sleep p.312

doi: 10.1038/s41586-023-05827-w

An E1–E2 fusion protein primes antiviral immune signalling in bacteria p.319

doi: 10.1038/s41586-022-05647-4

Ubiquitin-like conjugation by bacterial cGAS enhances anti-phage defence p.326

doi: 10.1038/s41586-023-05862-7

A viral biomolecular condensate coordinates assembly of progeny particles p.332

doi: 10.1038/s41586-023-05887-y

Ornithine aminotransferase supports polyamine synthesis in pancreatic cancer p.339

doi: 10.1038/s41586-023-05891-2

The NK cell receptor NKp46 recognizes ecto-calreticulin on ER-stressed cells p.348

doi: 10.1038/s41586-023-05912-0

Programmable protein delivery with a bacterial contractile injection system p.357

doi: 10.1038/s41586-023-05870-7

Large-scale mapping and mutagenesis of human transcriptional effector domains p.365

doi: 10.1038/s41586-023-05906-y

Structural basis of sensory receptor evolution in octopus p.373

doi: 10.1038/s41586-023-05822-1

Sensory specializations drive octopus and squid behaviour p.378

doi: 10.1038/s41586-023-05808-z

TnpB structure reveals minimal functional core of Cas12 nuclease family p.384

doi: 10.1038/s41586-023-05826-x

Cryo-EM structure of the transposon-associated TnpB enzyme p.390

doi: 10.1038/s41586-023-05933-9