China's Chang'e-4 probe has survived 500 Earth days on the far side of the moon.
The lander and the rover Yutu-2 have resumed work for the 18th lunar day on the far side of the moon after "sleeping" during the extremely cold night.
The lander woke up at 3:25 am Sunday (Beijing time), and the rover awoke at 11:53 am Saturday. Both are in normal working order, according to the Lunar Exploration and Space Program Center of the China National Space Administration.
The Chang'e-4 probe, launched on Dec 8, 2018, made the first-ever soft landing on the far side of the moon on Jan 3, 2019.
A lunar day equals 14 days on Earth, and a lunar night is the same length.
The Chang'e-4 probe switches to dormant1
mode during the lunar night due to the lack of solar power.
- Many animals are in a dormant state during winter.在冬天许多动物都处于睡眠状态。
- This dormant volcano suddenly fired up.这座休眠火山突然爆发了。