The sky over the Namadgi National Park turns orange due to a bushfire in Canberra, Australia, Jan. 28, 2020. A bushfire in the south of Canberra is recognized as the most serious bushfire threat to the Australian capital since 2003, according to local sources on Tuesday. The fire, believed to be started on Monday by the landing of a defence helicopter, has engulfed nearly 8,000 hectares as of 7:30 p.m. local time, said a report by the Australian Broadcasting Corporation. (Photo by Chu Chen/Xinhua)