Plain-language, and built to be family-safe. Last updated July 2026.
You can take part without an account and without giving us your email or any personal details. We collect as little as possible, we don't sell anything, and we don't track you across the web.
To make the game and Data Lab work, we store only:
We do not ask for your email, phone, address, birthday, or location, and we don't require you to sign in.
This project is meant to be welcoming to families and classrooms. Because we don't collect personal information from anyone — children included — kids can take part without giving up private details. Public display names are moderated, and we ask everyone to keep names family-friendly. If you're a parent or teacher and have a question or concern, please reach out.
Your chosen display name, the systems you chart, and honorary discovery names may appear publicly on the map, leaderboards, and scoreboard. Honorary names are reviewed and must pass a family-friendly filter. Nothing else you provide is shown publicly.
We keep a small amount of data in your browser's local storage to remember your progress. We don't use advertising trackers.
The science runs on free, public data from the NASA Exoplanet Archive and (later) the Breakthrough Listen initiative. That's about planets and stars, not about you.
This is a free, for-fun citizen-science project offered as-is, with no guarantees. Please be kind: keep names and contributions family-friendly, don't try to break or spam the site, and understand that honorary "discovery names" are a celebratory thank-you — not official astronomical names (those are set by the International Astronomical Union). We may remove content that breaks these simple rules.
An exploration by the Griswolds. Questions? Learn more about the project.