 mitochondria are essential for cellular energy production and maintenance of cellular homeostasis. They can be divided into two types, fission and fusion, which allows them to move around the cell and facilitate the process of removing damaged mitochondria by autophagy. Additionally, mitochondria can also be moved out of cells via the cytoskeleton, allowing for efficient clearance of damaged mitochondria. This article was authored by Hongmin and I, Jessica A. Williams and Wenxing Ding.