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Earth Observation · Interactive

Ground Truth

Forty years of Earth, watched without blinking — and measured.

Since the 1980s, satellites have imaged the whole planet on a loop. That unbroken record lets you compress four decades of change into a few seconds — and pull the economic signal straight out of the pixels. Six places, six kinds of change. Scroll.

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The Planet difference

At three metres

Landsat 30 mPlanet 3 m
Landsat · 30 mPlanet · 3 m

Illegal gold mining in Madre de Dios, Peru — rainforest stripped to bare earth and pocked with mercury ponds. The same place at Landsat's 30 m and Planet's 3 m. Drag to compare.

What it's worthGold prices drive the digging; at 3 m, daily, the spread shows up the week it happens — a physical-economy signal that doesn't wait for a quarterly report.

Planet imagery © 2023 Planet Labs PBC (PlanetScope Sandbox Data), processed by D. Balanzat and used under CC BY-NC 4.0, rendered via the Planet Insights Platform. Landsat 30 m: USGS/NASA (public domain) via the Microsoft Planetary Computer.

Six places. Millions more.

Every story here runs on free, open satellite imagery — four decades of Landsat — the public record that reaches back to the 1980s. What it can't do is reach back at high resolution, or update faster than about once a week.

That's the line where Planet begins: the largest daily Earth-observation archive ever built, at 3 metres. The history here is open data; the present, at this fidelity, is Planet's.

The operational companion: The Power Draw →

Built by Don Balanzat

An independent build for the love of the problem. Forty-year time-lapses: imagery © USGS/NASA Landsat via the Microsoft Planetary Computer, natural-color composites rendered per year, with signals (surface water, reclaimed land, standing forest) computed from spectral indices on the same scenes; Phoenix shows U.S. Census metro population. The closing comparison uses real Planet PlanetScope (Sandbox Data, CC-BY-NC) rendered through the Planet Insights Platform. Dollar figures are illustrative estimates from public sources — U.S. Bureau of Reclamation (Hoover Dam), the EU Deforestation Regulation, Dubai property records, and reported Aral Sea impacts.