Why subscribe?

There is a revolution in spaceflight and space technology happening, and surprisingly little knowledge about the sheer scale of what is happening, even among experts. I created Planetocracy as an educational resource to help people understand this, and as a source of ongoing analysis of the industry.

C204 launches from Kennedy LC-39A.

If you’re curious about the name, I explain here

Each month I do a Mass Value Report which updates and analyses the figures for the current space economy, and provides future predictions. In between, I write on space history, new space projects, and sometimes opinion pieces. I provide technical and scientific breakdowns you won’t find on news sites.

Become a paid member

Some of my work is behind a paywall; Mass Value Reports are time consuming to make and I believe are the most valuable for readers, so these are mostly paid subscribers. I leave the top line figures each month above the pay line for casual readers, and reserve the deep dive part of the report for my supporters.

Most months there is only one free article; the rest will be only for paying subscribers.

A subscription roughly equivalent to buying someone a coffee each month, to hear the latest technical insights into the human expansion into space. Please consider supporting my work:

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The Future of Humanity in Space

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Astrophysics PhD and industry analyst. Advocate of human settlement of the solar system