A new study developed a mineralized DNA hydrogel that combines immune regulation with sustained bone regeneration. Using tetrahedral DNA nanostructures and calcium phosphate mineralization, researchers created a scaffold that promotes healing-friendly macrophage activity while supporting bone-forming stem cells. In animal models, the material accelerated bone repair, improved tissue mineralization, and prolonged structural stability. The findings may advance next-generation biomaterials for craniofacial reconstruction, traumatic injuries, and challenging bone healing disorders worldwide.

Carnegie’s Andrew Newman led a team of astronomers that used JWST to make  the first direct mass measurement of a dormant black hole at the center of a galaxy from the early universe. Previously, this technique had only been used to study black holes in the local universe. But JWST and a phenomenon called gravitational lensing enabled the researchers to use it on a galaxy that's light is reaching us from when the universe was just 3 billion years old.