In an article in the science journal Nature, researchers from Chalmers University of Technology, the University of Gothenburg and Uppsala University, Sweden, present a technology with the smallest pixels ever, in a screen with the highest resolution possible for the human eye to perceive. The pixels reproduce colours using nanoparticles whose dimensions and arrangement control how light is scattered, and whose optical properties can be electrically tuned. This breakthrough paves the way for the creation of virtual worlds that are visually indistinguishable from reality.

For decades, scientists struggled to pin down which gene is responsible for the heart problems that are so common among babies born with Down syndrome. Now, scientists at Gladstone Institutes have an answer. In a study published in Nature, the researchers leveraged stem cell science and artificial intelligence to discover that a gene called HMGN1 disrupts how DNA is packaged and regulated, and can throw off levels of hundreds of other molecules involved in healthy heart development.