China makes fake moons

A Chinese company has announced ambitious plans to put a "fake moon" into space to brighten the night sky. According to the People's Daily state newspaper, officials at a private aerospace institute in Chengdu want to launch this "illumination satellite" in orbit by 2020, and say it will be bright enough to replace street lights. The straight-out-of-sci-fi news has sparked fascination, scepticism from scientists and lots of questions, says R.Sathyanathan. Produced by RaySel.