Rebuilding Ukrainian science can’t wait — here’s how to start p.593

International support has rightly focused on researchers who have been forced to flee. Ukraine’s devastated research infrastructure needs assistance, too.

doi: 10.1038/d41586-023-00505-3

Nature welcomes Registered Reports p.594

From this week, Nature will be publishing an additional type of research paper — designed to encourage rigour and replication.

doi: 10.1038/d41586-023-00506-2

Disgraced CRISPR-baby scientist’s ‘publicity stunt’ frustrates researchers p.599

He Jiankui refused to answer researchers’ questions about his controversial 2018 experiments at weekend event.

doi: 10.1038/d41586-023-00382-w

WHO may soon end mpox emergency — but outbreaks rage in Africa p.600

African health officials worry that as the mpox outbreak wanes in wealthy countries, so too will the global interest in research and funding.

doi: 10.1038/d41586-023-00391-9

Researchers scramble as Twitter plans to end free data access p.602

A controversial policy change threatens to upend large social-media studies.

doi: 10.1038/d41586-023-00460-z

Marburg virus outbreak: researchers race to test vaccines p.603

Control measures such as quarantine could end the outbreak in Equatorial Guinea quickly — good news for inhabitants but a mixed blessing for clinical trials.

doi: 10.1038/d41586-023-00468-5

Outcry as scientists sanctioned for climate protest p.604

Researchers have asked the American Geophysical Union to reverse actions it took against scientists who demonstrated at a December meeting.

doi: 10.1038/d41586-023-00440-3

‘Mirror neurons’ fire up during mouse battles p.605

Brain cells are crucial for triggering fights — but also become active when mice merely observe fights.

doi: 10.1038/d41586-023-00418-1

High-altitude balloons: a scientists’ guide to what’s up there and why p.606

doi: 10.1038/d41586-023-00482-7

The fight to keep Ukrainian science alive through a year of war p.608

doi: 10.1038/d41586-023-00508-0

Your brain could be controlling how sick you get — and how you recover p.613

doi: 10.1038/d41586-023-00509-z

Signs of ancient climate crisis as the Hittite empire unravelled p.625

An assessment of juniper tree-ring samples from central Turkey, together with other types of dating analysis, demonstrate that a devastating drought in 1198–1196 bc contributed to the end of the Hittite empire.

doi: 10.1038/d41586-023-00271-2

Tropical biodiversity linked to polar climate p.626

The rise in species diversity towards the tropics is a striking and unexplained global phenomenon. Ocean microfossil evidence suggests that this pattern arose as a result of ancient climate cooling and polar-climate dynamics.

doi: 10.1038/d41586-023-00392-8

A twist in the bid to probe electrons in solids p.628

Two microscopy techniques have been merged into a tool for twisting ultrathin sheets of atoms relative to each other. The approach offers a new angle for studying the electronic properties of exotic layered materials.

doi: 10.1038/d41586-023-00474-7

The Alzheimer’s risk gene APOE modulates the gut–brain axis p.629

Signals from gut microorganisms to the brain might be involved in neurodegeneration. It emerges that the gene APOE — variants of which each confer a different risk of Alzheimer’s disease — has a role in modulating this gut–brain communication.

doi: 10.1038/d41586-023-00261-4

An oracle predicts regulators of cell identity p.630

A computational tool called CellOracle can predict how networks of genes interact to program cell identity during embryonic development. The tool should help to hone efforts to understand how development is regulated.

doi: 10.1038/d41586-023-00251-6

JWST opens a window on exoplanet skies p.632

An unprecedented glimpse of a distant planet reveals clues about how it might have formed. Scientists explain why it’s a win for atmospheric chemistry, and celebrate the technology that made it possible.

doi: 10.1038/d41586-023-00394-6

CAR immune cells: design principles, resistance and the next generation p.635

doi: 10.1038/s41586-023-05707-3

Identification of carbon dioxide in an exoplanet atmosphere p.649

doi: 10.1038/s41586-022-05269-w

Early Release Science of the exoplanet WASP-39b with JWST NIRCam p.653

doi: 10.1038/s41586-022-05590-4

Early Release Science of the exoplanet WASP-39b with JWST NIRSpec PRISM p.659

doi: 10.1038/s41586-022-05677-y

Early Release Science of the exoplanet WASP-39b with JWST NIRSpec G395H p.664

doi: 10.1038/s41586-022-05591-3

Early Release Science of the exoplanet WASP-39b with JWST NIRISS p.670

doi: 10.1038/s41586-022-05674-1

Suppressing quantum errors by scaling a surface code logical qubit p.676

doi: 10.1038/s41586-022-05434-1

The quantum twisting microscope p.682

doi: 10.1038/s41586-022-05685-y

Observation of hydrodynamic plasmons and energy waves in graphene p.688

doi: 10.1038/s41586-022-05619-8

Electrolyte design for Li-ion batteries under extreme operating conditions p.694

doi: 10.1038/s41586-022-05627-8

Less extreme and earlier outbursts of ice-dammed lakes since 1900 p.701

doi: 10.1038/s41586-022-05642-9

Origination of the modern-style diversity gradient 15 million years ago p.708

doi: 10.1038/s41586-023-05712-6

Late Cenozoic cooling restructured global marine plankton communities p.713

doi: 10.1038/s41586-023-05694-5

bc" rel="external">Severe multi-year drought coincident with Hittite collapse around 1198–1196 bc p.719

doi: 10.1038/s41586-022-05693-y

The cellular coding of temperature in the mammalian cortex p.725

doi: 10.1038/s41586-023-05705-5

A NPAS4–NuA4 complex couples synaptic activity to DNA repair p.732

doi: 10.1038/s41586-023-05711-7

Dissecting cell identity via network inference and in silico gene perturbation p.742

doi: 10.1038/s41586-022-05688-9

Influenza vaccination reveals sex dimorphic imprints of prior mild COVID-19 p.752

doi: 10.1038/s41586-022-05670-5

Functional T cells are capable of supernumerary cell division and longevity p.762

doi: 10.1038/s41586-022-05626-9

Telomere-to-mitochondria signalling by ZBP1 mediates replicative crisis p.767

doi: 10.1038/s41586-023-05710-8

De novo design of luciferases using deep learning p.774

doi: 10.1038/s41586-023-05696-3

Structural basis for substrate selection by the SARS-CoV-2 replicase p.781

doi: 10.1038/s41586-022-05664-3

Structure and thiazide inhibition mechanism of the human Na–Cl cotransporter p.788

doi: 10.1038/s41586-023-05718-0