About Orbit & Odds

Who writes Orbit & Odds, and how it relates to this domain's past.

Orbit & Odds is an independent explainer blog about two subjects that share more than you might think: how things move in space, and how to reason about chance. Orbits, launch windows, reliability, randomness, expected value and the law of large numbers.

Who writes it

The explainers are written by Tobias Wren, a pen name for a science writer with an interest in orbital mechanics and probability. No affiliation with any space agency, university or company is claimed. Definitions link to general references so you can check them.

About this address

This web address was previously used for the International Symposium on Space Technology and Science held in Kobe in 2014. This blog is not connected to that symposium or its organisers, does not speak for them, and does not organise any conference. If you are looking for the symposium, please search for its current website.

What this blog is not

There are no products, memberships or registrations here. Calculations are illustrations of method, not engineering, financial or gambling advice.

REV 2026-11-09 / Tobias Wren