Carbon in our bodies likely left galaxy and came back on cosmic 'conveyer belt'
Life on Earth could not exist without carbon. But carbon itself could not exist without stars. Nearly all elements except ...
A new calculation of the electron's self-energy improves determination of fundamental constants
When quantum electrodynamics, the quantum field theory of electrons and photons, was being developed after World War II, one of the major challenges for theorists was calculating a value for the Lamb ...