Matter & Energy News -- ScienceDaily

• Scientists find hidden materials that could improve batteries and solar fuels
  Scientists have uncovered a hidden world of “in-between” materials that briefly form as chemical ingredients are heated, revealing structures that conventional methods can miss. Among the discoveries is a previously unknown form of bismuth vanadate, a material widely studied for using sunlight to help produce clean hydrogen. The new version has a different atomic structure and interacts with light in a strikingly different way, potentially opening new possibilities for solar fuels, catalysts, and electronics.
• A quantum prediction from 1931 just came to life
  Nearly a century after physicist Hans Bethe predicted them, scientists have created and directly observed unusual quantum states known as “Bethe strings” in an ultracold gas. By cooling cesium atoms to near absolute zero and trapping them in thousands of tiny one-dimensional tubes, researchers were able to make groups of atoms bind together without ordinary chemical bonds. These strange clusters could contain six or more particles and even collide with one another without falling apart.