The Triumphs and Troubles of the 7,000 Starlink Satellites Crowding Our Night Skies

Two years ago, communities across Northwest Alaska woke to find that they had no internet or cellphone service. A mammoth piece of arctic sea ice had scraped the ocean floor 34 miles north of Oliktok Point, cutting a fiber optic cable buried 13 feet underground, below about 90 feet of water. Overnight, residents suddenly couldn’t withdraw money from ATMs, set up doctors appointments or call 911.

It would take 14 weeks for the cable to be repaired, but by then, Eben Hopson, a photographer in Utqiagvik, had already made the jump to Starlink — a satellite internet option from Elon Musk’s SpaceX.  

“It’s been a game changer,” Hopson tells me. “You bring a Starlink dish out there and plug it in. Two minutes later, you’ve got the whole world again in the palm of your hand.” 

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Starlink has kicked off a race to low-Earth orbit, or LEO — the sweet spot in the skies where satellite providers can beam down fast, low-latency internet to people like Hopson. When it launched in 2019, Starlink was joining around 2,000 satellites in the entire sky; an article published in Nature in 2020 determined that 100,000 satellites in the sky by 2030 is “not just feasible but quite likely.”

I’ve heard stories like Hopson’s a lot in my seven years reporting on the broadband industry and its technology. People in rural areas often tell me they have no internet options in their area — or crappy ones at best. Starlink essentially handed over a time machine and fast forwarded people in those places from 2005 to 2025 overnight. But as with any major technology shift there are potential consequences.

Starlink’s horde of satellites have contributed significantly to making space a perilously busy place. Scientists have been ringing alarm bells about the unintended consequences for the ozone layer, astronomical research and a sky cluttered with space junk — from decades of rocket launches and satellite deployments that have only increased in recent years — that poses a threat to internet providers like Starlink itself.

For as long as the internet’s been around, there have been those who can access and afford a speedy internet connection and those who can’t. This gap is referred to as the digital divide, with rural areas often being stuck with few (or just plain bad) options. 

It’s an ironic twist: The satellites that we’re becoming so dependent on to help bridge this gap could be their own downfall. 

How Starlink has helped close the digital divide

Most of us take our internet for granted. Like electricity, it’s part of our monthly budget, and we only really think about it when it goes out. In 1930, nearly nine in 10 urban and nonfarm rural homes had access to electricity, but only about one in 10 farms did. The gap isn’t quite as wide with internet, but the analogy holds: In 2019, the year Starlink launched its first satellites, 67% of rural Americans had access to download speeds of 100 megabits per second and upload speeds of 10Mbps, compared to 98% in urban areas. 

“There’s really no comparison,” Edwin Walker, a retired electrical engineer in Chattaroy, Washington, tells me about his previous internet options. “We get 100 or 200 megabits per second downloads [with Starlink] and it’s reliable.” Walker says he had been getting around 10 to 20Mbps from his old provider.

Rural areas have been the last to get high-speed internet because of the prohibitive costs associated with installing fiber-optic lines to sparsely populated areas. 

“Fiber is great, but our cost estimates show somewhere around $120 [thousand] to $130,000 per location just to connect it with fiber,” Kevin Lyons, a spokesperson for the Texas Comptroller, says about rural areas in West Texas. “You’re spending all that money to put in fiber — either on poles or on the ground — and the household may not even adopt it.”

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It’s not a stretch to say Starlink revolutionized internet access in rural America seemingly overnight. The satellite internet company was launched in 2015 by SpaceX and has been a personal project of the tech billionaire. Its satellite dishes are about the size of a pizza box and can connect anywhere with a clear view of the sky. Starlink also debuted its Mini dish last summer, which is designed for internet on the go. 

Starlink has grown to around 1.4 million subscribers in the US and 4 million globally since its debut in 2021. That’s only 1% of all internet connections in the country. That number might not sound noteworthy, but the homes that Starlink serves have been in the most stubbornly difficult-to-connect pockets of the country. 

Starlink has also ushered in a new era for our skies. When SpaceX launched its first batch of Starlink satellites in May 2019, there were only around 2,000 operational satellites in the entire sky. Today, that number has grown to over 11,000 — nearly 7,000 of which belong to Starlink. SpaceX has said it hopes to eventually grow the number to 42,000. 

Starlink is starting to be joined by competitors too. Amazon’s Project Kuiper plans to launch its first operational satellites in early 2025 and has permission from the Federal Communications Commission to deploy as many as 3,236 satellites

“It’s not just about Starlink. It’s about everybody who wants to operate in space,” says Hugh Lewis, a professor of astronautics at the University of Southampton. “I do not think that we can operate the number of spacecraft safely that we have now, let alone the numbers that are coming down the pipeline.”

Starlink didn’t respond to CNET’s request for comment on this story. 

Starlink has been a game changer in rural areas

The truth is, most people in the US don’t need Starlink. The most recent FCC data shows that 90% of addresses are served by cable or fiber internet, which is significantly faster and cheaper than Starlink. But for that remaining 10%, it’s proven to be a godsend. 

Maine has the second-highest percentage of residents living in rural areas of any state, with many of them living in exceptionally remote places. 

“The nature of population density in Maine is such that it drops so quickly,” says Brian Allenby, senior director with the Maine Connectivity Authority. “When you’re down to one or two locations per mile, LEO service really is the most cost-effective.”

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So far, we haven’t seen this play out at scale. Of the first group of Starlink satellites launched in 2019 and 2020, 337 out of 420 are still in orbit, according to data collected by Jonathan McDowell, an astrophysicist who tracks satellite launches. But SpaceX has recently started de-orbiting the first Starlink satellites at an increasingly high rate, “incinerating about 4 or 5 Starlinks every day at the moment,” McDowell tweeted in January.

Researchers have been ringing alarm bells about what could happen when thousands of Starlink satellites start being de-orbited each year. 

“The worrying thing is that air sampling flights of the last couple years have found that, in one report, up to 10% of particle debris in the stratosphere has these weird melted pieces of metal that are suspiciously like pieces of melted spacecraft,” McDowell tells me. “We’re changing the composition of the stratosphere significantly.”

Those samples were taken in 2023 by scientists with the National Oceanic and Atmospheric Administration. Very few LEO satellites had burned up in the atmosphere at that point and scientists were already seeing the impact. They estimated that the percentage of particles in the stratosphere with traces of metals from rockets and satellites could increase from 10% to 50% “based on the number of satellites being launched into low-Earth orbit.”

According to the NOAA, the stratosphere is a layer of the Earth’s atmosphere that moderates Earth’s climate and includes the protective ozone layer.

One study, funded by NASA and published in June in Geophysical Research Letters, found that a 550-pound satellite releases about 66 pounds of aluminum oxide nanoparticles during reentry. These oxides have increased eightfold from 2016 to 2022. The bigger satellites that will be deployed by the Starship rocket will weigh in at around 2,750 pounds each. 

“This is primarily a concern for the large number of satellites to be launched in the future,” says Joseph Wang, one of the study’s authors. “We projected a yearly excess of more than 640% over the natural level [of aluminum oxide nanoparticles]. Based on that projection, we are very worried.”  

According to the EPA, ozone depletion leads to health issues like skin cancer, cataracts and weakened immune systems, as well as reduced crop yield and disruptions in the marine food chain.

We’re not seeing those effects yet, but in a world where “100,000 satellites in the sky by 2030 is not just feasible but quite likely,” the research certainly seems alarming. But the scientists I spoke with described this as more of a “wait and see” situation. 

“Adding many tons of aluminum per day to the atmosphere could certainly affect the ozone layer. Right now, the research is not in,” McDowell says. “It’s possible the answer will be, ‘Yeah, we’ve still got a few orders of magnitude to spare. This is not going to do anything bad.’ It is also possible that the research will come back and say, ‘Yeah, we’re really destroying the ozone.'”

Astronomy interference: “More satellites than stars visible”

When SpaceX launched the first Starlink satellites in 2019, its own engineers were shocked at how bright they were. Astronomical images were suddenly getting photobombed by Starlink. 

“What surprised everyone — the astronomy community and SpaceX — was how bright their satellites are,” Patrick Seitzer, an astronomy professor emeritus at the University of Michigan, said at a conference eight months after the first Starlink launch. 

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