Terms Conditions


Astronomers for Planet Earth (A4E) is a grass-roots organization consisting of over 1300 astronomers, astronomy educators and enthusiasts from all over the world. While bound to our operating principles and code of conduct, each member of our organization is independent and fully responsible for their own actions. For the sake of convenience, this website and other publications sometimes refer simply to “A4E” when talking about one or more groups within the network.

Similarly, the words “we”, “us” and “our” may also be used to refer to other entities in the A4E network and their respective volunteers. For questions, comments or other feedback, please contact us at info@astronomersforplanet.earth.


  • Cookies are created automatically by almost all website content management systems, including this one.
  • Cookies do not harm your computer.
  • Cookies help make our website more user-friendly, efficient, and secure, and are not used for purposes of advertisement or sales.
  • Cookies are small text files that are saved by a visitors’ browser. For example, cookies are collected when a visitor ‘likes’ content or blog posts, and for the purposes of anonymous visitor analytics.
  • Most cookies we use are so-called „session cookies.“ They are automatically deleted after your visit.

Other cookies remain in your device’s memory until you delete them. These cookies make it possible to recognize your browser when you next visit the site. Disabling cookies may limit the functionality of this website.

Personal Data

The only personal data we collect are the details you give us if and when you sign up for membership. This data includes, among other things, your name and email address. The protection of your data is our top most priority.

We utilize Google products to ensure that your data is kept in world class data centers, and encrypted in-transit and at rest. We do not (or will ever) sell or share your data, and only a privileged few vetted administrators possess access.

If you wish your data to be deleted at any point, please get in touch at info@astronomersforplanet.earth, and it will be done.

Embedded Content

Articles on this site may include embedded content (e.g. videos, images, articles, etc.). Embedded content from other websites behaves in the exact same way as if the visitor has visited the other website. These websites may collect data about you, use cookies, embed additional third-party tracking, and monitor your interaction with that embedded content, including tracking your interaction with the embedded content if you have an account and are logged in to that website.

Analytics To improve the user experience and information flow of our website, we record anonymous information regarding pages viewed and websites arrived from. This information is strictly anonymous. We hope you enjoy your experience on the A4E website.

If you have any questions at all, please don’t hesitate to get in touch! info@astronomersforplanet.earth.