SpaceX has announced plans to launch one million new Starlink satellites, which would significantly increase the current number of over 10,000 satellites already orbiting the Earth. These satellites are designed as orbital data centers for AI computing power, but their sheer scale poses a significant threat to our ability to observe and appreciate the night sky.
The human eye can see fewer than 4,500 stars in an unpolluted night sky, making it difficult to distinguish between the numerous satellites that will soon be visible. This will severely damage the night sky for everyone on Earth, rendering it inaccessible for stargazing and astronomy.
SpaceX's proposal also fails to account for atmospheric pollution, collision risk, or how to develop technology needed to disperse waste heat from orbital data centers. These concerns are crucial to ensuring the sustainability of satellite launches and minimizing their impact on our environment.
The proposed constellation will have satellites in much higher orbits, making them visible for longer periods of the night. This means that even during the day, when most people are awake, the sky will be filled with numerous satellites, further exacerbating the problem.
A simulation was built using data from astrophysicist Jonathan McDowell's website to estimate the impact of SpaceX's proposal on the night sky. The results show that there will be more visible satellites than stars for large portions of the night and year.
The colored points in the figure above represent the positions and brightness of satellites in the sky, with blue being the faintest and yellow being the brightest. This visualization highlights the overwhelming number of satellites that will soon be visible in the sky.
The simulations also show that tens of thousands of sunlit satellites will be visible at any given time, making it difficult to distinguish between them and the stars. This will have a profound impact on our ability to observe and appreciate the night sky.
It is hard to overstate the significance of this issue: Should a million new satellites be launched, they will overwhelm our ability to observe and appreciate the night sky, rendering it inaccessible for stargazing and astronomy.
The implications of this proposal extend beyond the scientific community, as the night sky has cultural and historical significance for many people. The loss of this natural wonder will have a profound impact on human experience and our connection to the universe.
The sheer number of satellites will overwhelm our ability to observe and appreciate the night sky, rendering it inaccessible for stargazing and astronomy.
