T Tauri stars

T Tauri stars are young, developing stars that are less than a few million years old. They are still forming from a cloud of gas and dust and haven't yet started nuclear fusion in their cores, which is the process that powers mature stars like the Sun. T Tauri stars are typically bright and variable, often surrounded by disks of material that may eventually form planets. They are important because they provide insight into how stars and planetary systems develop in the early stages of their lives.