This year's mathematical discoveries include the largest known prime number, a new method for calculating pi, and the introduction of a new geometric shape.
Daily briefing: Carbon bond that uses only one electron seen for first time
A single-electron covalent bond between carbon atoms has been observed for the first time, potentially revolutionizing our understanding of chemical bonds.
Stem cells from a diabetes patient show promise in treating type 1 diabetes without the need for immunosuppressants.