China's Chang'e-4 probe and Yutu-2 rover resumed work on Monday, Beijing time, after hibernating through the extreme cold of lunar night, according to the China National Space Administration.

Entering the 19th lunar day of their exploration, the probe and rover are focusing their exploration on a pit three meters southwest of Yutu-2's position. The pit, with a diameter of about 1.3 meters and a depth of no more than 20 centimeters, contains substances of high reflectivity, which makes it significantly brighter than its surrounding lunar soil. The rover will next further probe the pit with infrared imaging spectrometer.