“Now with the amount of infrastructure that’s going up, it’s going to be very critical that light mitigation be part of the satellite design, to ensure that we can carry out astronomical research and to preserve the night sky for future generations.”
. Each report argues that much more needs to be done to address the effects of thousands of satellites in low Earth orbit; the window of opportunity is “narrow and closing,” as the SATCON 2 report puts it.
Jessica Heim, head of the community engagement hub and an expert in cultural astronomy at the University of Southern Queensland in Australia, points out that some indigenous members of her previous SATCON working group view the proliferation of satellite constellations as a new form of colonization.
Some astronomers have already witnessed the effects of satellite swarms. Last month, a team of astronomersbased on their observations using an instrument called the Zwicky Transient Facility at Palomar Observatory near San Diego. They found that 18 percent of their images taken at twilight in 2021 contained satellite streaks, compared to less than 0.5 percent two years earlier, though only a small fraction of pixels were affected.
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