A combination of theoretical calculations and information from astronomical observations indicates that massive neutron stars can contain cores filled with free quarks
The ALICE, CMS and LHCb collaborations present new measurements that show how particles containing charm quarks can serve as “messengers” of hadrons and the quark–gluon plasma, carrying information about these forms of matter
The extraordinary session of the CERN Council scheduled for 25 May will be replaced by a discussion via videoconference to determine the next steps in the process