Frequently Asked Questions

No. Every calculation runs entirely in your browser. Your birth date, your weight, or anything else you enter is never sent to a server or stored anywhere. Close the tab and nothing is left behind.

Yes, completely. No account, email, or identifying information is required to use any tool. The site is appropriate for all ages and contains no inappropriate content.

Planetary ages are calculated from real orbital periods published by NASA. Moon phase uses the true ecliptic positions of the Sun and Moon (the method described in Jean Meeus's Astronomical Algorithms), not a fixed-month approximation, so it stays accurate no matter how far back your birth date is.

No. Cosmic Age Again is pure astronomy and orbital mechanics — measurable facts about how the planets and Moon move. We make no claims about how celestial positions influence your personality, fate, or future events.

Someone with a STEM background and a lifelong passion for astronomy and space — not a professional astronomer. You can read more on the About page.

No, it is completely free. If you find it useful or enjoy using it, you can voluntarily support the project through Ko-fi — it is never a requirement.

Ads (when active) help cover the cost of keeping the site running. They're served through Google AdSense, and we respect your choice to accept or reject non-essential cookies — details are in our Privacy Policy.

Yes. The site is designed mobile- and tablet-first, so every tool works fully at any screen size.