SpaceX’s proposal to launch one million satellites into orbit has triggered alarms across the scientific community concerning orbital safety and astronomical research. Scientists warn that such a massive influx of devices—positioned between 500 and 5,000 km in altitude—poses a severe collision risk for existing satellites and crewed missions. Currently, only about 16,000 satellites orbit the planet, with active units totaling 14,000; SpaceX already manages more than half of that active population.
Beyond the physical threat of space debris, the sheer density of this proposed megaconstellation could compromise the capabilities of both ground-based and space-based observatories. Researchers specifically point to the Hubble Space Telescope as being at risk of increased interference. If realized, this expansion would represent a nearly 60-fold increase in the total number of objects in Earth's orbit, fundamentally altering the environment for future space exploration.
