Stargazers around the world and including many Britons have witnessed unusual constellations made up of the low earth orbit spacecraft.
SpaceX has been launching large batches of satellites as part of its Starlink project to improve global internet coverage.
The most recent launch took place on Wednesday.
Responding to a question about the brightness of the Starlink satellites on Twitter, Mr Musk said it was due to the angle of the satellites solar panels and the company was "fixing it now".
A fix could make them less visible from Earth.