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Initiative for Interstellar Studies

Working towards the achievement of interstellar flight through knowledge to the stars - Starships in our lifetime

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Membership FAQ

Q: Your subscription amounts are in sterling (GBP). How will I be charged in my local currency?
A: Our payment provider, Stripe, will make the conversion at their current exchange rate which is close to the current mid-market rate.

Q: Can I cancel my membership at any time?
A: Yes. Either email us at membership@i4is.org or go to Settings from the Members Area home page and click on "Cancel Membership". We won't press you to rejoin but it would be helpful if you tell us why you are cancelling. When you cancel you will lose access to your membership benefits at the end of your current billing period. Alternatively, you can email us and request an immediate deletion of your account.

Q: I am no longer a Student / I am now 65. How do I change my membership plan?
A: You can update your membership plan by logging into the Members Area home page and going to Settings. On the settings page, click on "Change Membership Plan", and then complete the form, selecting the plan you would like to switch to. Your new plan will commence (and you will then be charged) when you reach the end of your current billing period. You can find the date your current billing period ends on the Settings page. Note: If your current membership plan has already expired following a cancellation request, you will need to click the link to "Restart Membership" instead. If you have any questions or encounter any difficulties please email us at membership@i4is.org.

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A: You can update your card details by logging into the Members Area home page and going to Settings. On the settings page, complete the "Update Billing Method" form with your new card details. Note: If your current membership plan has already expired due to too many failed attempts to charge your expired card, you will need to click the link to "Restart Membership" instead. If you have any questions please email us at membership@i4is.org.

Q: How does i4is use my membership contribution?
A: Members contributions go toward things such as projects and programmes and the inevitable business overheads such as hosting this website, software licences, fees etc. Members receive an annual report each year including our finances based upon our annual returns to the UK and US company regulators.

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Blog

Halley – Return to Earth

6 October 2026

Adam Hibberd Having solved the problem of catching up with and staying alongside Halley’s comet as it orbits the Sun (go here), the natural follow-up problem is how do we return to Earth, from Halley’s orbit, with a sample on-board? So, I decided to look into the problem of a sample return mission from Halley, […]

Europlanet Symposium

2 October 2026

Mention must be made of Annual Europlanet Science Congress 2026, Symposium, which took place in Netherlands this September. Our Executive Director, Andreas Hein chaired the session on Interstellar Objects (ISOs). T. Marshall Eubanks (Space Initiatives Inc, USA) gave the invited talk at the beginning, highlighting our efforts to coordinate the observation campaign of 3I/ATLAS. See […]

Science/Science Fiction Workshop in University of Derby, UK

2 October 2026

We are delighted to highlight an event organised by our long-term supporter, PhD Candidate (and our original Executive Secretary!) Sarah Margree. It’s a star-studded panel with Alastair Reynolds, Ian C Douglas, Professor Ian Turner, our Deputy Director Rob Swinney and Luke Cabot. Then Sarah and Jean Asselin will lead an afternoon of science fiction writing […]

Europlanet Symposium

2 October 2026

Mention must be made of Annual Europlanet Science Congress 2026, Symposium, which took place in Netherlands this September. Our Executive Director, Andreas Hein chaired the session on Interstellar Objects (ISOs). T. Marshall Eubanks (Space Initiatives Inc, USA) gave the invited talk at the beginning, highlighting our efforts to coordinate the observation campaign of 3I/ATLAS. See […]

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Initiative for Interstellar Studies
27/29 South Lambeth Road
London, SW8 1SZ
United Kingdom

info@i4is.org

Starship Blog

Halley – Return to Earth

Europlanet Symposium

Science/Science Fiction Workshop in University of Derby, UK

Europlanet Symposium

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The Initiative for Interstellar Studies is entirely dependent upon the goodwill of its volunteer teams, the minor amounts we receive from our activities and the sale of our merchandise but also the kindness of donors. In order to advance our mission of achieving interstellar flight over the next century, we need your help and support. If you are feeling generous we would very much appreciate your help in moving our mission forward. Make a donation » about Donate

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