By 2022, China envisions to bid farewell to the streetlights as it schedules to launch 3 artificial moons. This man-made moon is an artificial satellite carrying a huge space mirror. Reflecting the sun’s light to the Earth, this mirror will illuminate the area continuously for 24 hours.
According to the statement of Wu Chunfeng, head of Tianfu New District System Science Research Institute, “Using man-made moon to illuminate an area 50 sq km can save 1.2 billion yuan of electric charge. It can also illuminate blackout areas when natural disasters such as earthquake happen.”
Reportedly, the moon orbits the Earth about 380,000 km from the Earth, while the man-made moon is expected to be put on an orbit within 500 km from the Earth. Further addressing the media, Wu said, “The reflected sun light can cover an area of 3,600 sq km to 6,400 sq km, and the illumination intensity is expected to be eight times of the moon light.”
The state-run Science and Technology Daily reported, “The verification of launch, orbit injection, unfolding, illumination, adjust and control of the man-made moon will be completed by 2020.” Further clarifying on the concerns of interruption in nature’s day-night cycle, the Daily stated, “About concerns that the man-made moonlight will interrupt the normal day-night cycle of animals and plants, Wu said the light intensity and illumination time can be adjusted and the accuracy of illumination can be controlled within scores of meters. When a man-made moon is orbiting, people can only see a bright star in the sky.”