How light pollution is making it increasingly difficult to see the stars

How light pollution is making it increasingly difficult to see the stars

Astronomers around the world are calling for international agreements to limit the spread of satellite constellations in space, with warnings that light pollution at night from the satellites damages vital scientific work. In Britain, the government is also being urged to impose new planning regulations to reduce light pollution to stop the loss of the nation's dark skies. Malcolm Brabant reports.