Research is exploring the role of astrocytes in the adult dentate gyrus, including their balance between adult and developmental tasks. Studies are investigating various aspects of astrocyte function, such as their interaction with neural stem cells, response to long-term potentiation and depression, and influence on cognitive processing and neurogenesis. The findings suggest that astrocytes play a complex and multifaceted role in the adult brain, potentially giving rise to new neurons and regulating hippocampal function.