Chinese scientists will have to wait until the end of a long lunar night, lasting about 14 earth days, to see if repair efforts on the country’s first moon rover, dubbed Jade Rabbit, were successful, state media said. Jade Rabbit began experiencing ‘mechanical control abnormalities’ on Saturday when entering the lunar night, which exposes the surface to extreme cold over about 14 earth days. The rover is supposed to shut down during that period. ‘The complicated environment on the moon’s surface is frequently the main reason leading to abnormalities in the lunar vehicle,’ Pang Zhihao, an expert from the China Academy of Space Technology, told state media. Strong radiation, weak gravity, extreme temperature variations and other factors could be to blame for the malfunctions, Pang told the Science and Technology Daily.