Concerning dark energy, it might be explainable by quantum vacuum fluctuations: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.103504 https://journa

Concerning dark energy, it might be explainable by quantum vacuum fluctuations: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.103504 https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.10... (the last author of that paper is rather well respected in that field)