Starlink: Elon Musk's 42,000 Satellites

https://youtu.be/Aw3R-4UC4wI

2:03 eventually, a network of 42,000 satellites

2:40 they're interconnected with laser beams

4:56 satellites will have technology to dodge other satellites in their way

This animation shows the shocking number of satellites already up there. 

https://youtu.be/dJNGi-bt9NM