About duorolt.com
A plain-English guide to the small worlds of the Solar System.
What this site is
duorolt.com explains the smaller members of the Solar System: dwarf planets, asteroids, comets, meteors and the missions that study them. It is written in American English for curious adults, students and teachers. There are 45 guides in five categories, a quiz wheel and a Star map that fills in as you finish rounds.
What you will find
- Guides of at least 900 words, each with a free introduction, a table or checklist, a section on common myths, a short FAQ and a list of sources.
- Two dates on every guide: when it was published and when its facts were last checked.
- Measurements in metric units first, with miles and pounds beside them.
- A quiz wheel with 150 questions. Each one has an explanation and a source page.
Who writes it
Guides are written by the duorolt.com editorial team and follow the rules on the editorial policy and methodology pages. We do not present individual experts or credentials. A guide stands on the sources it cites, so you can check every claim yourself.
What it is not
This site is independent. It is not run by, or affiliated with, NASA, ESA, JAXA, the International Astronomical Union or any other agency we cite. It is not a news service, so it does not chase breaking events. It gives no medical, legal or financial advice. Today it shows no ads and runs no tracking scripts.
How to reach us
Questions, corrections and ideas are welcome. Write to contato@duorolt.com or use the contact form.