Category archives: Physics

ESA’s Planck satellite finds the missing baryons

ESA’s Planck satellite finds the missing baryons

AstrophysicsCosmologyPhysics

By Francisco R. Villatoro

Where is the half of the ordinary matter in the universe not observed yet? Computer simulations of cosmological galaxy formation predict the existence of large intercluster filaments of hot and low-density gas, the so-called cosmic web. For the first time, ESA’s Planck satellite has observed one of such filaments in the merging cluster pair A399-A401 […]