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Membership Details

The best way to support the mission of i4is is to become a subscribing member. You can directly support the interstellar programme and even get involved with our projects! We are a growing community of enthusiasts who are passionate about taking the first steps on the path toward interstellar travel now.

Besides the tremendous contribution you will be making by financially supporting our activities, and getting involved yourself, the additional benefits of membership are:

1. early access to select Principium articles before publicly released;
2. member exclusive email newsletters featuring significant interstellar news;
3. access to our growing catalogue of videos;
4. participate in livestreams of i4is events and activities;
5. download and read our annual report;

Subscription costs £50 per year. If you are over 65, you can avail of the concessionary rate of just £10 per year. Students in full-time education can become members of i4is for just £5 per year. Please use your institutional email account if you have one.

You can also subscribe monthly. Monthly payments are £5 per month (equivalent to £60 per year).

If you would like to find out more about i4is, please register for our quarterly magazine, Principium. We would also be grateful if you could promote i4is membership with our collection of posters and video.

If you have any specific questions, please see our membership FAQ or email the membership manager at membership@i4is.org.

How to become a member

To support the mission of i4is through your subscription, please select the appropriate membership option, complete the form and click on the payment link. Currency conversion is automatic. You can cancel at any time via your membership Settings page:

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Annual Membership - £50 per annumAnnual Student Membership - £5 per annumAnnual Membership (British Interplanetary Society Member Discount) - £40 per annumConcessionary Membership - £10 per annum

Annual Membership - £50 per annum

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