A University of Cambridge supercomputer known as “Dawn,” used by climate and cancer researchers, is taken offline during a heatwave, according to a report. The system is forced offline on June 27 after temperatures at the university reach about 30°C. The reports say the machine is a multi-million-pound facility and that its shutdown is linked to heat management requirements. The accounts describe Dawn as supporting work in both climate science and cancer research, implying that the halt temporarily affects ongoing computing tasks for those areas. The sources do not provide additional technical details about the overheating threshold, the duration of the outage, or whether the system resumes operation once temperatures fall. They also do not specify any investigation or corrective measures being considered beyond the immediate response. The reports present the incident as an example of how extreme weather can disrupt advanced computing infrastructure.