Privacy

UPDATED SEPTEMBER 9, 2026

The Observatory currently has no advertising or audience-analytics scripts. Ads are not enabled.

Progress on your device

Your completed challenges and quiz progress may be saved in your browser’s local storage. The Observatory’s code does not upload this progress. Remove it using “Clear” in the activity directory or by clearing this site’s storage in your browser.

Website delivery

Cloudflare hosts and delivers this website. It may process connection and traffic information, including your IP address, to provide and protect its services. See Cloudflare’s privacy policy for details.

Images and links

Images, 3D models, and supporting files are served with the site. There are no embedded YouTube videos. Links to YouTube and scientific sources open other services, whose privacy practices apply when you visit them.

Changes

Before advertising or analytics is enabled, we will update this page and add any required consent controls.