A prototype battery-powered plane, called Greased Lightning or GL-10 is pictured flying at NASA's Langley Research Center in this undated handout photo obtained by Reuters May 1, 2015. The plane, which has 10 engines and can take off like a helicopter and fly efficiently like an aircraft, is currently in the design and testing phase. (Photo by Reuters/NASA)

A man set wood on fire to prepare for worshippers to walk barefoot over burning coals during the Nine Emperor Gods festival at a temple in Kuala Lumpur, Malaysia, Monday, October 7, 2024. (Photo by Vincent Thian/AP Photo)

A polar bear fast asleep at London Zoo. (Photo by Fox Photos/Getty Images). 1961