The test satellites that became an empire
On a February morning in 2018, two small satellites named Tintin A and Tintin B rode into orbit aboard a Falcon 9, tucked alongside a Spanish observation satellite as secondary payload . They were test articles, nothing more — identical twins built to prove SpaceX could manufacture satellites at scale, communicate with ground terminals, and operate in the crowded radio spectrum without creating interference. MicroSat 2a and 2b, as they were formally designated, massed a few hundred kilogrammes between them and carried experimental phased-array antennas and electric propulsion systems . They were supposed to validate a concept, then deorbit.
Seven years later, SpaceX has launched more than 6,000 successors to those test satellites, building the largest artificial constellation in human history . Starlink — the 12,000-satellite low Earth orbit network that began as an internal SpaceX proposal to fund Mars colonisation — has become the world's most successful satellite internet service, with two million active subscribers scattered across six continents . It has connected Ukrainian soldiers under artillery fire to targeting data, allowed Zambian businesses to leapfrog terrestrial infrastructure, and drawn furious opposition from astronomers who say it is destroying the night sky . It has also become a geopolitical lever, a military dependency, and a test case for whether a private corporation can unilaterally reshape the global commons.
The story of how SpaceX moved from two test satellites to operational dominance is not a tale of steady progress. It is a chronicle of regulatory negotiation, engineering improvisation, and a willingness to deploy technology at a pace that left governments, competitors, and scientists scrambling to respond. Along the way, Starlink has surfaced questions about who owns low Earth orbit, what obligations come with providing critical infrastructure, and whether the rest of us have any say in what happens above our heads.
Building the swarm
Starlink's operational history began in May 2019, when SpaceX launched its first batch of 60 production satellites from Cape Canaveral, Florida . They were flat-packed into the Falcon 9 fairing like dinner plates, then released in a single shimmering train that amateur astronomers immediately spotted crossing the night sky. Each satellite massed about 260 kilogrammes and carried a phased-array antenna, a solar panel, and a krypton-fuelled ion thruster for orbit-raising and deorbiting . SpaceX had secured permission from the Federal Communications Commission to lower the constellation's operational altitude, dropping future satellites from the originally planned 1,150 kilometres to 550 kilometres . The move reduced latency and made atmospheric drag a passive deorbit mechanism — dead satellites would naturally decay within five years — but it also meant SpaceX would need more satellites to cover the same area.
The company committed to the challenge with industrial intensity. By October 2020, SpaceX had launched more than 1,000 Starlink satellites into orbit, a milestone it reached during a mission that sent 60 more units aloft in a Thursday-morning launch . The cadence was unrelenting: SpaceX flew multiple Starlink missions per month, treating its Falcon 9 fleet like a cargo airline. In late 2022, the company planned up to 11 more Starlink launches in the second half of the year alone, ramping up operations from Vandenberg Space Force Base in California to complement its Cape Canaveral launch site . By January 2024, SpaceX crossed another threshold, launching the first batch of satellites designed to connect directly to unmodified smartphones — a technical leap that eliminated the need for ground terminals in certain applications .
The latest iteration, the Starlink V2 Mini Optimised satellites, continues the drumbeat. In a recent mission from Space Launch Complex 40 at Cape Canaveral, SpaceX placed 29 of these upgraded units into low Earth orbit . Each generation has grown more capable: higher throughput, better beam-steering, more sophisticated inter-satellite laser links. SpaceX has also developed compact user terminals — the small dishes that subscribers install on rooftops or vehicle roofs — to connect to the network . The terminals are self-orienting and can maintain a connection while moving, a feature that has made Starlink viable for ships, aircraft, and military vehicles.
"SpaceX has launched more than 6,000 satellites into orbit, building the largest artificial constellation in human history."
The service goes live
Starlink began beta testing in late 2020, sending email invitations to early adopters in the northern United States and Canada . The company's initial promise was straightforward: low-latency broadband where terrestrial infrastructure did not reach. SpaceX planned to start commercial service in the northern US and Canada by the end of 2020, then expand southward and overseas . Early testers reported download speeds around 85 megabits per second — fast enough for video streaming, online gaming, and remote work . The service was not flawless — weather and obstructions degraded performance, and the network could not yet handle the density of urban demand — but for rural users accustomed to dial-up speeds or no service at all, it was transformative.
By mid-2021, SpaceX had opened Starlink to public beta testers without requiring an invitation, provided they lived in eligible coverage areas . Canadians could sign up directly; so could residents of Belgium and the Netherlands, where SpaceX launched service after flying four Starlink missions in a single month . The global rollout accelerated. In Bangladesh, Starlink officially inaugurated its service through kit deliveries, with local officials and SpaceX representatives marking the occasion . In Zambia, the service launched with a business tier, partnering with the Paratus Group to offer enterprise connectivity . Morocco's telecommunications regulator, l'ANRT, announced it was considering granting licences to Starlink and its competitor OneWeb as early as 2025 . By mid-2023, Starlink had reached two million active subscribers, a number growing at what analysts described as a geometric rate .
The expansion has not been uniform. Coverage remains concentrated in wealthy northern-hemisphere markets, and ground-station placement is subject to local regulatory approval. Some countries have resisted or delayed Starlink's entry, wary of ceding telecommunications sovereignty to a foreign corporation. Others have embraced it: Mexico's low-cost airline Volaris announced plans to equip its entire fleet with Starlink Wi-Fi by 2027, a decision that will make in-flight connectivity standard across its routes . SpaceX has also introduced Starlink Maritime, a high-performance, high-price variant designed for ships at sea, with terminals that can handle rough weather and continuous movement .
The speed problem
Yet as Starlink's subscriber base has grown, its performance has begun to fray. Speed tests conducted in the United States showed download speeds falling from around 85 megabits per second to roughly 50 megabits per second in the third quarter of 2023 . The decline is a textbook case of network congestion: more users sharing the same radio spectrum and satellite capacity. SpaceX has launched thousands of satellites, but each one can serve only a limited number of simultaneous connections within its coverage footprint. As subscriber density increases, especially in suburban and semi-rural areas where Starlink has found its most enthusiastic early adopters, the available bandwidth per user drops.
The slowdown has prompted concern among subscribers who paid premium prices for the service and among investors watching Starlink's path to profitability. SpaceX's response has been to launch more satellites — the V2 Mini units carry significantly more capacity than the original Block v1.0 satellites — and to introduce tiered pricing that prioritises certain users. Business customers and maritime users pay more and receive higher-priority access. Residential users in high-demand areas face de-prioritisation during peak hours. It is the classic trajectory of a utility: scarcity breeds rationing, and rationing breeds resentment.
The military dimension
Starlink's most consequential deployment, however, has been one SpaceX did not plan. When Russian forces invaded Ukraine in February 2022, they targeted the country's telecommunications infrastructure, severing fibre lines and jamming mobile networks. Within days, Ukrainian officials reached out to Elon Musk, SpaceX's chief executive, requesting Starlink terminals. Musk responded by activating service over Ukraine and shipping thousands of terminals into the country . The Pentagon later formalised the arrangement, awarding SpaceX a contract to provide Starlink satellite internet to Ukrainian forces .
The impact was immediate and profound. Ukrainian soldiers used Starlink to connect drones to targeting systems, relaying real-time video feeds and coordinates to artillery units . The low-latency, mobile-capable network allowed small units to operate semi-autonomously, coordinating strikes and manoeuvres even as Russian forces jammed traditional military communications. Starlink became, in effect, critical battlefield infrastructure — a role that raised uncomfortable questions about the terms of service and the limits of corporate control.
Those questions came to a head in late 2022, when reports emerged that SpaceX had limited Starlink's use for offensive drone operations . Ukrainian forces expressed fury, arguing that the restrictions hampered their ability to target enemy positions. SpaceX, for its part, has maintained that its terms of service prohibit the use of Starlink for weapons control, a position that reflects both legal liability concerns and Musk's stated preference for avoiding direct involvement in lethal operations. The dispute exposed the fragility of relying on a private service for military needs: SpaceX could alter terms, throttle bandwidth, or withdraw service entirely, and Ukraine would have little recourse.
The view from the ground — and the sky
For astronomers, Starlink represents an existential threat to ground-based observation. When SpaceX launched its first 60 satellites in 2019, they appeared as a bright, moving chain across the night sky, visible to the naked eye . The satellites' solar panels and flat bodies reflected sunlight during twilight hours, creating streaks that ruined long-exposure images and interfered with telescope observations. Astronomers warned that a constellation of 12,000 satellites — or the 42,000 SpaceX had proposed in later filings — would fundamentally alter the appearance of the night sky and compromise scientific research .
SpaceX responded by darkening the satellites, experimenting with anti-reflective coatings and orientation changes that reduced, but did not eliminate, their visibility . The company argued that the lower orbital altitude — secured through FCC permission — would make satellites less intrusive, as they would spend less time in sunlight while the ground was dark . Astronomers acknowledged the improvements but remained deeply concerned. The sheer number of satellites, combined with those planned by competitors like OneWeb and Amazon's Project Kuiper, threatened to create a permanent, low-level haze of moving lights and radio interference.
The dispute has played out in regulatory forums and scientific conferences, including a discussion hosted by the National Academy of Sciences . Astronomers have called for enforceable standards on satellite brightness, radio-frequency coordination, and orbital debris mitigation. SpaceX has participated in some of these conversations, but the company's operational tempo has outpaced the regulatory process. By the time standards are debated and codified, thousands more satellites will already be in orbit.
The test that never ends
Starlink launched a simulator designated Simulator 15 on 27 May 2025, part of an ongoing series of tests to refine the network's capabilities . The detail is minor, almost bureaucratic, but it captures the essential character of the programme: Starlink is never finished. Each launch is both operational deployment and live-fire testing. Each software update adjusts beam patterns, routing algorithms, and interference mitigation in real time, with millions of users as unwitting participants.
This iterative, deployment-as-testing model has allowed SpaceX to move faster than traditional satellite operators, who typically validate systems exhaustively before launch. But it has also left Starlink in a state of permanent beta, with performance, coverage, and policy subject to change without notice. Subscribers in one country may experience different speeds, pricing, or terms than those in another. Governments negotiate access on varying terms, or find themselves negotiating with a moving target as SpaceX updates its technology and business model.
The constellation's growth continues. SpaceX has secured regulatory approval for tens of thousands of additional satellites and has hinted at next-generation designs with even greater capacity . The company's long-term vision — using Starlink revenue to fund the development of Starship, the fully reusable rocket intended to carry humans to Mars — depends on maintaining launch tempo and subscriber growth . Whether the network can scale to serve tens of millions of users, maintain acceptable performance, and satisfy regulators in dozens of countries remains an open question.
What was agreed, and by whom
The central tension in Starlink's rise is one of consent and governance. SpaceX built the constellation under licences granted by the US Federal Communications Commission, an agency with jurisdiction over American satellite operators but no authority over the global commons of low Earth orbit. Other countries have granted landing rights and spectrum access, but these are bilateral negotiations, conducted after the satellites are already overhead. No international body approved the deployment of 6,000 satellites; no global referendum decided whether the night sky should be re-engineered.
This procedural asymmetry has profound implications. Starlink is, in effect, a unilateral reshaping of the space environment, undertaken by a private corporation with the tacit approval of its home regulator. It has delivered tangible benefits — connectivity in underserved regions, resilience in conflict zones, competition in a stagnant telecommunications market — but it has also imposed costs that were never democratically debated. Astronomers lose observing time; debris risks increase; spectrum becomes more crowded. These are externalities, absorbed by the global community whether or not it consented to the trade-off.
The rise of Starlink, then, is not just a story about satellites. It is a story about who gets to decide how shared resources are used, and on what terms. SpaceX moved quickly because the regulatory environment allowed it, and because the technical and financial barriers to mega-constellations had finally fallen. The result is a world more connected and more surveilled, more resilient and more dependent, with a night sky that will never again look as it did before two test satellites named Tintin rode to orbit on a winter morning.
The constellation that changed the world is still growing. Whether the world has any say in what comes next remains, like so much else in this story, an open question.