p.325

The funding powerhouse should encourage the International Monetary Fund to prioritize research into sustainable development.

doi: 10.1038/d41586-021-00959-3

p.326

Vaccine development has been a resounding success. But the medicine cabinet should have been better stocked.

doi: 10.1038/d41586-021-00960-w

p.333

The muon’s magnetic moment is larger than expected — a hint that new elementary particles are waiting to be discovered.

doi: 10.1038/d41586-021-00898-z

p.334

Researchers are searching for possible links between unusual clotting and the Oxford–AstraZeneca coronavirus vaccine.

doi: 10.1038/d41586-021-00940-0

p.336

The country has an enormous virus-sequencing capacity, but funding and coordination roadblocks are holding it back.

doi: 10.1038/d41586-021-00908-0

p.337

doi: 10.1038/d41586-021-00877-4

p.339

Ancient human lineages interbred commonly in Europe, as well as the Middle East.

doi: 10.1038/d41586-021-00916-0

p.340

doi: 10.1038/d41586-021-00958-4

p.355

Phase transitions in certain non-equilibrium systems cannot be described using the classical laws of statistical mechanics. A mathematical approach involving features called exceptional points now solves this far-reaching problem.

doi: 10.1038/d41586-021-00886-3

p.356

A stress hormone has been found to signal through skin cells to repress the activation of hair-follicle stem cells in mice. When this signalling is blocked, hair growth is stimulated. Stressed humans, watch out.

doi: 10.1038/d41586-021-00656-1

p.359

Vortices of electrical polarization have been observed to vibrate at extremely high frequencies in a material called a ferroelectric. Such motion could be directly controlled by electric fields for ultrafast data processing.

doi: 10.1038/d41586-021-00887-2

p.360

A mechanism has been found in fruit flies that enables cells called astrocytes to signal to neurons, closing a developmental window during which locomotor behaviour is shaped.

doi: 10.1038/d41586-021-00680-1

p.363

doi: 10.1038/s41586-021-03375-9

p.370

doi: 10.1038/s41586-021-03411-8

p.376

doi: 10.1038/s41586-021-03342-4

p.381

Incorporation of the pseudo-halide anion formate during the fabrication of α-FAPbI3 perovskite films eliminates deleterious iodide vacancies, yielding solar cell devices with a certified power conversion efficiency of 25.21 per cent and long-term operational stability.

doi: 10.1038/s41586-021-03406-5

p.386

doi: 10.1038/s41586-021-03404-7

p.392

doi: 10.1038/s41586-021-03414-5

p.397

doi: 10.1038/s41586-021-03371-z

p.403

doi: 10.1038/s41586-021-03323-7

p.409

doi: 10.1038/s41586-021-03317-5

p.414

doi: 10.1038/s41586-021-03441-2

p.421

doi: 10.1038/s41586-021-03343-3

p.428

doi: 10.1038/s41586-021-03417-2

p.433

doi: 10.1038/s41586-021-03387-5

p.438

doi: 10.1038/s41586-021-03402-9

p.444

doi: 10.1038/s41586-021-03233-8

p.450

doi: 10.1038/s41586-021-03362-0

p.457

doi: 10.1038/s41586-021-03351-3

p.463

doi: 10.1038/s41586-021-03363-z

p.469

doi: 10.1038/s41586-021-03376-8