Cover Illustration: Live arborized astrocyte in culture (NB+), containing numerous dextran‐laden endocytotic vesicles (green), revealed by confocal microscopy. Arborized astrocytes display increased resting levels of intracellular Ca 2+ concentration ([Ca ] i ) and [cAMP] , subcellular heterogeneity [Ca but not attenuated vesicle mobility. (See Pirnat, S., et al, https://doi.org/10.1002/glia.24...