The US president’s approval of a controversial oil pipeline offers a disturbing glimpse of the future. But he will struggle to get things all his own way.
The country may lift its ban on the analysis of gene-coding regions in DNA samples.
A material made of overlapping layers of graphene (atom-thick sheets of carbon) changes colour according to the level of stress applied. This could be used in structures to provide early warning of damage.A team led by Shanglin Gao of the Leibniz Institute of Polymer
Viruses more often evolve by jumping from one host species to another than by remaining within a particular species.Edward Holmes and his colleagues at the University of Sydney in Australia compared the evolutionary histories of 19 virus families with those of their animal or
The build-up of fat cells in the bone marrow could explain why bones grow weaker and heal more slowly with age.Tim Schulz at the German Institute of Human Nutrition in Potsdam-Rehbrücke and his colleagues identified a population of stem-cell-like cells in the bones of
A white dwarf star that circles a black hole every 28 minutes may have the closest orbit of its kind ever seen in our Galaxy.The system, called 47 Tuc X9, is some 4.5 kiloparsecs away. It was already thought to contain two objects orbiting
A cheap, rechargeable sodium-based battery could one day deliver high power at room temperature thanks to its hybrid solid electrolyte.Electrolytes allow electrical charge to flow between a battery’s electrodes. Liquid electrolytes can leak and tend to react with sodium metal, an abundant, low-cost material
Mammals might respond to global warming by shrinking in size.During a large warming event called the Palaeocene–Eocene Thermal Maximum (PETM), some 56 million years ago, mammals became smaller. To see how common this climate-driven dwarfing might have been, Abigail D’Ambrosia of the University of
New Zealand parrots provide the latest support for a popular theory of crowd behaviour.
Carlos Moedas sees a bold future for the European Research Council and more projects that copy its approach.