Earth Observation Satellites 2035: The Race to Launch 6,500 New Eyes in the Sky

Six thousand, five hundred satellites. All of them pointed at Earth. All launching in the next nine years.

That's not a conspiracy theory. That's a new forecast from Novaspace, a Paris-based aerospace market research firm — and it was paid for by the very industry building those satellites. According to the report, released this week, more than 6,500 Earth observation satellites will launch by 2035, generating $155.9 billion in manufacturing revenues. Not services. Not data subscriptions. Just the hardware.

The number is staggering. But the reason governments are commissioning them is even more revealing.

What are Earth observation satellites used for?

Earth observation satellites photograph, scan, and measure the planet continuously from orbit. They track deforestation in the Amazon. They count aircraft on runways. They measure oil storage levels at refineries to predict commodity prices. They watch troop movements along contested borders — sometimes before the troops have eaten breakfast.

Modern EO satellites fall into two types. Optical satellites use cameras sharp enough to distinguish a car from a truck. Synthetic aperture radar (SAR) satellites use microwave pulses that punch through clouds, rain, and total darkness. They can image a location at 3am in a blizzard. They can detect millimeter-level ground movement under a city. They can spot a submarine's wake long after it's gone.

How many Earth observation satellites are there right now?

Roughly 800 to 1,000 EO satellites are operational today. That number includes commercial constellations like Planet Labs — which photographs the entire Earth's landmass every single day — plus government systems like Landsat, the European Sentinel series, and dozens of classified military reconnaissance platforms. By 2035, Novaspace forecasts that number climbs to over 7,500 total.

Why does every government suddenly want its own EO satellites?

The key phrase buried in the Novaspace report is "sovereign intelligence." Translation: countries don't want to depend on someone else's satellites to see what's happening in their own backyard — or their enemy's.

The war in Ukraine made this viscerally clear. Commercial satellite imagery from Planet Labs and Maxar was posted publicly within hours of Russian troop movements. It wasn't classified. Anyone with an internet connection could watch the war unfold in near-real-time from orbit. Governments watching that realized something uncomfortable: they had no control over who else was watching too.

Now, nations from India to Brazil to the UAE are commissioning their own national EO constellations. Not leasing access. Not buying subscriptions. Building their own birds. The Novaspace forecast is the financial X-ray of that shift.

You can watch this arms race unfolding in real time on the SkyLens live tracker. Filter by "Earth observation" and you'll see roughly 200 satellites circling the globe right now. By 2035, that layer will be almost unreadably dense.

Can Earth observation satellites see your house?

Commercially available imagery today resolves to about 30 centimeters — roughly the length of a school ruler. You can identify a vehicle type. Count people in a crowd. Assess building damage after an earthquake. Planet Labs operates at this resolution. Maxar goes sharper.

To be fair: commercial operators in most countries face legal resolution caps. US regulations restrict commercial satellite imagery to 25cm maximum. Below that — meaning finer detail — is reserved for government customers. Published specs for classified military reconnaissance systems don't exist, but defense analysts widely believe they operate at substantially higher resolution than anything commercially available.

Who's driving the $155.9 billion Earth observation boom?

The Novaspace forecast maps money as much as satellites. $155.9 billion in manufacturing by 2035 implies huge scale — small SAR satellites can cost $5 million each; military intelligence platforms run to billions. The biggest demand categories driving this surge:

• Defense and national security — the single largest customer. Every major military now treats continuous Earth imagery as a core operational requirement, not a luxury.
• Climate and environmental monitoring — pressure to track methane leaks, deforestation rates, sea level rise, and wildfire ignition has pushed both government and private investment sharply upward.
• Agricultural intelligence — crop yield forecasting, drought monitoring, and commodity price prediction from space is already a multi-billion-dollar industry.
• Maritime and supply chain tracking — monitoring global shipping in contested waterways, especially after COVID shattered global supply chains, exploded as a use case.

What happens to Earth monitoring by 2035?

It means near-continuous coverage of virtually every point on the planet.

Today, a specific location might get photographed once or twice a day, depending on which satellite happens to pass over. By 2035, with hundreds of overlapping constellations flying simultaneously, revisit times could drop to single-digit minutes for high-priority targets. That's not an estimate — it's the designed capability of several constellations already in development.

Think about what that changes. A tanker departing a port at 2am gets tracked before it clears the harbor. A missile facility being quietly constructed in a remote desert has days, not months, before it's photographed. A wildfire in a region with no ground observers gets detected within minutes of first ignition.

The orbital geometry that makes this possible is elegant: stagger satellites at different inclinations and altitudes within the same constellation, and you guarantee that at least one satellite is always in view of any given point. That's the engineering blueprint behind those 6,500 launches.

Is anyone regulating Earth observation satellites?

That's the uncomfortable question nobody's rushing to answer. International space law — primarily the 1967 Outer Space Treaty — governs behavior in space. It says almost nothing about what satellites can look at. Imaging Earth from orbit has always been legal under international law. The principle was informally established during the Cold War, when the US and USSR both ran reconnaissance satellites and chose not to challenge each other's right to do so.

What's new is scale and accessibility. When only superpowers could afford this capability, the number of entities with planetary surveillance was small and known. By 2035, dozens of countries and hundreds of private companies will have it. The regulatory frameworks simply haven't caught up. There is no international treaty governing commercial satellite imagery resolution limits, data retention periods, or resale of imagery to third parties — including adversarial states.

The space race most people are watching is rockets and Moon missions. The space race that will actually reshape the next decade is quieter, lower, and already bankrolled. It's 6,500 satellites, in overlapping orbits, watching every inch of Earth. And it starts now.

For more on what's happening in orbit right now — launches, reentries, and the satellites you didn't know existed — visit the SkyLens blog.