By Joe Pinkstone For Mailonline
Published: 11:35 GMT, 17 January 2019 | Updated: 13:10 GMT, 17 January 2019
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Controversial plans from a Russian firm would see adverts run across the evening sky using hundreds of tiny orbiting satellites.
The ambitious marketing project would beam down luminous slogans and logos from 300 miles (480 kilometres) above the people it is targeting.
StartRocket is a budding company hoping to use Cubesats - briefcase sized spacecrafts - in low-Earth orbit and arranging them in a particular way based on the demands of the paying customer.
They would reflect light from the sun back towards Earth's surface and therefore only be functional when light is available near Earth but not on the surface, such as at dawn and dusk.
Each satellite would have a huge reflective sail which would act as a single pixel within the display.
Not everyone is happy with the plans, however, with critics pointing out the problem of light pollution the scheme will generate.
This may even threaten astronomical research on the ground, it has been claimed.
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A Russian firm wants to to put adverts in the sky using hundreds of tiny orbiting satellites. The ambitious marketing project would beam down luminous signs and logos from space from 300 miles (480 kilometres) above the people it is targeting
StartRocket estimates the advert would measure approximately 19 square miles (50 square kilometres).
The advert would theoretically be visible for a total of six minutes at a time and exist three or four times a day.
