Background: I am a science teacher preparing a lesson for middle school students about controversies over commercial activities in space. I am seeking information on how various satellite communications systems, such as Starlink, are affecting astronomical research conducted from the surface of the Earth. 
Request: I need a report about how various satellite communications systems, such as, but not restricted to Starlink, affect astronomical research conducted from the surface of the Earth. Specifically I am interested in how these satellites affect the data that scientists are trying to collect from telescopes below them, and the reaction of astronomers to the recent increase in the number of satellites potentially interfering with their observations.