The Tsiolkovsky rocket equation defines the maximum change of velocity ($\Delta v$) achievable by a rocket. It demonstrates the exponential difficulty of spaceflight.

Telemetry & Orbits

Tracking the physical infrastructure of the modern orbital economy.

~9,000
Active Satellites in LEO (2024)
$450k
Suborbital Ticket Price
400 km
Average ISS Altitude
05.

Astrophysics & Environment

The Orbit Newsletter

A weekly quantitative dispatch on launch mass, orbital deployments, and aerospace capital markets. No fluff.