If you look up at the sky on a clear night, shortly after one of SpaceX's many Falcon 9 rocket launches, you might see a bright string of lights zooming across the heavens.
This phenomenon, known as a Starlink train, occurs when light reflects off a newly deployed batch of SpaceX satellites before they eventually fan out and become part of the wider Starlink network. It is also a common reminder that giant groups of private satellites, known as "megaconstellations," are quickly becoming a reality.
