A small molecule produced by bacteria living naturally in people can help to combat a pathogen that is resistant to many antibiotics.Sean Brady at the Rockefeller University in New York City and his colleagues analysed the genomes of the human microbiota to identify genes
Many single-celled microorganisms are harmful, but others regulate the immune responses of their animal hosts to guard against infections.Some such organisms, called protozoa, live in the intestine, but have not been as well studied as their disease-causing counterparts. Miriam Merad at the Icahn School
A bit of information can be kept secure for 24 hours before being revealed — more than 5 million times longer than the previous record.Quantum cryptography guards against eavesdroppers, but in secure voting and sealed-bid auctions, a message must remain unread and protected for
Climate warming looks set to plunge the American Southwest into decades-long drought by the end of the century.Such ‘megadroughts’ have hit the region (Lake Powell on the Colorado River, pictured) during the past millennium. To calculate how changes in temperature, rainfall and soil
The ExAC database has shown that many mutations thought to be harmful are benign.
Host countries need to deal with the raised levels of mental-health disorders in migrants if they expect them to integrate well, and that could mean benefits for psychological care in rich countries too.
‘Nexus’ is enjoying new-found popularity. But what does it actually mean?
To protect endangered species from extinction, the ecological community must become more politically involved, argues Aaron M. Ellison.
Synthetic bones promote natural bone regeneration after being implanted into animals.Ramille Shah at Northwestern University in Evanston, Illinois, and her colleagues used a 3D printer to generate ‘hyperelastic bone’. The main component of the material was hydroxyapatite — a calcium mineral similar to one
Magnetic fields regulate how stars are born from massive clouds of interstellar gas.A team led by Francesco Fontani at the Arcetri Astrophysical Observatory in Florence, Italy, used high-resolution data from the Atacama Large Millimeter/submillimeter Array telescope in northern Chile to create detailed maps of