Two groups of scientists have found the missing baryons in hot filaments of gas that link galaxies together. Here's how they found these by taking advantage of the Sunyaev-Zel'dovich effect.
Space October 11, 2017
CERN scientists discovered five subatomic particles, which were excited states of Omega-c-zero, a baryon particle comprising two quarks and a charm quark. The excited states were carrying more energy than the standard particle of Omega-c-zero.
Energy March 28, 2017