Mega constellations of human-made satellites could soon blight the view of the night sky, astronomers warned following the launch of Elon Musk’s Starlink probes last week. However, others disputed this, including Bassa who has done some preliminary calculations of the number of Starlink satellites likely to be visible to observers. This means that in winter there would be several hours of the night during which no satellites would be visible. The satellites, in addition to changing the face of the night sky, could be problematic for professional astronomers, said Espinoza. Musk later added that SpaceX was investigating ways to reduce the amount of light bouncing off the Starlink satellites.

Source: The Guardian May 28, 2019 18:29 UTC