On February 17, 2020, SpaceX successfully launched 60 Starlink satellites on orbit.
Now look at the amazing video of the newly released satellites flying across the sky of Puerto Rico:
A couple of flashes are visible ahead of the main group of satellites. They are perhaps from parts or a pair of Starlink satellites ahead of the others.
This latest launch brings the total number of Starlink satellites in orbit to 300. This number will grow to 42,000 by the end of the project.
There are no international rules governing the brightness of orbiting manmade objects.
Although Starlink will bring internet access to every single corner of the world, it poses a serious threat to astronomical research and to us.
Sending mega-constellations of tens of thousands of internet satellites into low-Earth orbit will ruin many astronomical observations as well as the uncontaminated view of the night sky from dark places, which should be considered a non-renounceable world human heritage.
Right now, about 2,000 satellites orbit Earth and many thousands of dead satellites exist in “graveyard” orbits). So adding thousands more spacecrafts will increase the probabilities of collision and of space junk suddenly falling on Earth, near or on our homes and cities. And then we will need another definition for NEOs.