Physics

MICROSCOPE satellite puts Einstein’s general relativity to record-breaking test

Physics World: The equality of inertial and gravitational mass central to Einstein’s general theory of relativity has been confirmed at unprecedented sensitivities by the MICROSCOPE satellite. Having gathered several thousand…

The First Milky Way Black Hole Image Lets Scientists Test Physics

Scientific American: Deep in the heart of the Milky Way, strange things happen. This is a place where stars slingshot around apparently empty space at an appreciable fraction of the speed of light. Scientists have long thought that only a supermassive…

High-Temperature Superconductivity Understood at Last

Quanta Magazine: For decades, a family of crystals has stumped physicists with its baffling ability to superconduct — that is, carry an electric current without any resistance — at far warmer temperatures than other materials. Now, an experiment years in the…

Soft Robot Biodegrades Inside Body

Medgadget: Researchers at the City University of Hong Kong have developed a magnetic soft millirobot that can grab and release objects, and move around by rolling. The device can be controlled using magnetic fields, and consists of a biodegradable gelatin and iron oxide microparticles. The technology has significant potential…