Mega-satellite constellations could lead to chain-reaction spacecraft pile-ups in orbit

A new report by two Canadian researchers is highlighting the growing hazard of space debris. It warns that the new mega-constellations of tens of thousands of communication satellites could pose a new kind of danger that could ultimately threaten other satellites, astronauts, our ability to use space and could even have an impact on the climate.  

Recently, the uncontrolled fall from space of a large Chinese rocket booster gained worldwide attention as no one could predict where it would come crashing