In a letter to FCC, US space agency National aeronautics and space administration (NASA) said, ” concern with the potential for a significant 8ncrease in the frequency of conjunction events and possible impacts to NASA’s science qnd human spaceflight missions” and also add “NASA wants to ensure that the deployment of the starlink GEN 2 satellite system is conducted prudently, in a manner that supports spaceflight safety and the long-term sustainability of the space environment”
NASA has stated that starlink project will interrupt the radio frequency which affect ground radio equipment and future human space flight mission.

Not only the NASA, Union of Astronomers hold concerns about the ever-increasing number of Starlink satellites headed to orbit. In January, astronomers working at the Zwicky Transient Facility published a study showing Starlink satellites have caused streaks in telescope images and the problem is increasing. On Feb. 2, the International Astronomical Union announced the formation of a new body — the Centre for the Protection of the Dark and Quiet Sky — to mitigate the negative impacts of satellite constellations.

NASA concerns come out when spacex’s starlink lauches its 40 satellite into the space when satellite delivered in low orbit it hit by solar storms and all satellite disintegrate into earth atmosphere.

As in the recent event, volcanic erupition in pacific ocean near tonga. It disturbed and destroyed all type optical wires on the seafloor and tonga and nearby island disconnected with internet and the world in field of communication. Space x wanted to connect tonga with internet by its starlink project.