Scientists can strengthen nuclear agreements p.5

Knowledge is needed to help keep the peace as tensions rise between powers from India and Pakistan to the United States and North Korea.

doi: 10.1038/d41586-019-00787-6

Tracker is a boon for innovation in peer review p.5

Nature welcomes a registry that supports experiments to improve refereeing.

doi: 10.1038/d41586-019-00786-7

Chinese crew extract first rock from beneath East Antarctic ice in 60 years p.13

The experiment is a test for a plan to extract rock from a buried mountain range.

doi: 10.1038/d41586-019-00659-z

Sexual harassment rife in Australian science, suggests first workplace survey p.14

One in two female respondents to a national poll has been sexually harassed at work.

doi: 10.1038/d41586-019-00736-3

Huge US university cancels subscription with Elsevier p.15

University of California system and Dutch publisher fail to strike deal that would allow researchers to publish under open-access terms.

doi: 10.1038/d41586-019-00758-x

Night-vision ‘super-mice’ created using light-converting nanoparticles p.16

The particles bind to photoreceptors in the eyes and convert infrared wavelengths to visible light.

doi: 10.1038/d41586-019-00735-4

Pioneering ‘live-code’ article allows scientists to play with each other’s results p.17

eLife’s prototype lets scientists modify the software underlying figures to validate, build on, or better understand the work.

doi: 10.1038/d41586-019-00724-7

Paul Nurse on Brexit: ‘UK is sleepwalking into a disaster’ p.18

doi: 10.1038/d41586-019-00694-w

The fight for control over virtual fossils p.20

doi: 10.1038/d41586-019-00739-0

When cooperators cheat p.34

A study of a cuckoo species that usually shows cooperative nesting behaviour, but sometimes cheats at parenthood by laying eggs in others’ nests, reveals the benefits that have shaped the evolution of this parasitic tactic.

doi: 10.1038/d41586-019-00643-7

Receptor for bat influenza virus uncovers potential risk to humans p.35

How bat influenza viruses infect cells has been unclear. The discovery that they bind to a cell receptor that is present in many different species raises concerns about their potential risk to humans.

doi: 10.1038/d41586-019-00580-5

Scrambling of quantum information validated by quantum teleportation p.36

doi: 10.1038/d41586-019-00743-4

Ancient plants escaped the end-Permian mass extinction p.38

A global biodiversity crash 251.9 million years ago has revealed how ecosystems respond to extreme perturbation. The finding that terrestrial ecosystems were less affected than marine ones is unexpected.

doi: 10.1038/d41586-019-00744-3

Materials in flatland twist and shine p.39

doi: 10.1038/d41586-019-00704-x

Unstable genomes promote inflammation p.41

Faulty DNA replication can make genomes unstable. It now seems that, in mice, severe disruption of DNA replication triggers inflammation in the placenta, and female embryos are more sensitive to this than are male ones.

doi: 10.1038/d41586-019-00510-5

Diabetes relief in mice by glucose-sensing insulin-secreting human α-cells p.43

doi: 10.1038/s41586-019-0942-8

Colonic epithelial cell diversity in health and inflammatory bowel disease p.49

doi: 10.1038/s41586-019-0992-y

Structure of the IFNγ receptor complex guides design of biased agonists p.56

doi: 10.1038/s41586-019-0988-7

Verified quantum information scrambling p.61

doi: 10.1038/s41586-019-0952-6

Signatures of moiré-trapped valley excitons in MoSe₂/WSe₂ heterobilayers p.66

doi: 10.1038/s41586-019-0957-1

Evidence for moiré excitons in van der Waals heterostructures p.71

doi: 10.1038/s41586-019-0975-z

Observation of moiré excitons in WSe₂/WS₂ heterostructure superlattices p.76

doi: 10.1038/s41586-019-0976-y

Resonantly hybridized excitons in moiré superlattices in van der Waals heterostructures p.81

doi: 10.1038/s41586-019-0986-9

Molecular streaming and its voltage control in ångström-scale channels p.87

doi: 10.1038/s41586-019-0961-5

Wetland carbon storage controlled by millennial-scale variation in relative sea-level rise p.91

doi: 10.1038/s41586-019-0951-7

Social parasitism as an alternative reproductive tactic in a cooperatively breeding cuckoo p.96

doi: 10.1038/s41586-019-0981-1

Neuromodulatory control of localized dendritic spiking in critical period cortex p.100

doi: 10.1038/s41586-019-0963-3

Female-biased embryonic death from inflammation induced by genomic instability p.105

doi: 10.1038/s41586-019-0936-6

MHC class II proteins mediate cross-species entry of bat influenza viruses p.109

doi: 10.1038/s41586-019-0955-3

The centrosome protein AKNA regulates neurogenesis via microtubule organization p.113

doi: 10.1038/s41586-019-0962-4

Squalene accumulation in cholesterol auxotrophic lymphomas prevents oxidative cell death p.118

doi: 10.1038/s41586-019-0945-5

Complete biosynthesis of cannabinoids and their unnatural analogues in yeast p.123

doi: 10.1038/s41586-019-0978-9

Structural basis for KCTD-mediated rapid desensitization of GABA_B signalling p.127

doi: 10.1038/s41586-019-0990-0