Cargo ships are among the leading sources of pollution on the planet. A low-cost solution for reaching the new targets may come from a start-up, which is developing a nanostructured filter for use in a ship's exhaust stacks.
An older technology once de rigueur for preventing spacecraft gadgetry from getting too hot or too cold has been resurrected and repurposed for an emerging class of small satellites now playing an increasingly larger role in space exploration, technology demonstration, and scientific research.
Scientists have developed a new method that has enabled them to image magnetic fields on the nanometer scale at temperatures close to absolute zero for the first time. They used spins in special diamonds as quantum sensors in a new kind of microscope to generate images of magnetic fields in superconductors with unrivalled precision.