Group 1 - The research conducted by the Yunnan Astronomical Observatory and Harbin Institute of Technology (Shenzhen) reported a new event of dark bar splitting caused by the component reconnection mechanism, published in the Astrophysical Journal Letters [1][2] - Dark bars are low-temperature, high-density plasma structures suspended in the solar corona, previously thought to split mainly due to eruption mechanisms, but this new finding indicates a different cause [1][2] - The splitting of the dark bar occurred over an hour before the eruption features appeared, suggesting that this event does not align with the previously observed eruption mechanisms [2] Group 2 - The study observed numerous vertical small jets during the splitting process, which are similar to the nano-jets caused by component reconnection in coronal loops, indicating that reconnection can occur within the woven magnetic ropes of dark bars [2] - Direct observations of brightened dark bar filaments and subsequent vertical jets provide valuable evidence for the component reconnection mechanism within dark bars, linking small-scale reconnection to large-scale dark bar splitting [2] - This research highlights the potential of component reconnection to influence large-scale coronal parameters, contributing to a deeper understanding of the coronal heating problem [2]