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You are here: Home / Homepage / Principium 33

Principium 33

30 May 2021

Issue 33 of Principium, the quarterly publication of the Initiative and Institute for Interstellar Studies is now published.

Issue 33 | May 2021

This issue features –

  • LEAD FEATURE: Practicalities and Difficulties of a Mission to ‘Oumuamua
  • The Self Replicating Factory: a work in progress
  • The i4is Members Page
  • Project Pinpoint: Pushing the Limits of Miniaturization
  • Become an i4is member
  • News Features:
    • The i4is Talk Series – 2020 and 2021
    • The 2021 ISU Masters Elective and Masters Projects
    • The 10 parsec sample in the Gaia era
    • i4is wins major contract in Interstellar Studies
  • Interstellar News
  • Book Review: Simone Caroti – The Generation Starship In Science Fiction
  • Book Review: Avi Loeb – Extraterrestrial: The First Sign of Intelligent Life Beyond Earth

Download Issue 33



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Blog

Members Newsletter – June

30 June 2026

There’s no shortage of incredible interstellar content to choose from this month. I4is researchers published! Preliminary Analysis into the Feasibility of Missions to Asteroid 2024 YR4We are delighted that our lead astrodynamicist Adam Hibberd and our friend T Marshall Eubanks (Space Initiative Inc, USA) have a paper published by the American Institute of Aeronautics and […]

Principium 53

3 June 2026

Principium 53 has gone out to subscribers and is now accessible to all

Members Newsletter – May

2 June 2026

The Board of Directors of i4is and the Editor of Principium will make the following announcement in the next issue of Principium:”The i4is Board has been considering the future of Principium, given changes in the ways in which people receive and consume information and content. We have decided to pause the publication of Principium with […]

What’s up with 1998 KY26?

1 June 2026

Adam Hibberd I’m not sure whether you might already be aware of this but there are really weird objects orbiting the Sun which astronomers have observed and tried to categorize as a new class of object, ‘the dark comets’. But what makes them weird? It’s the rather strange fact that the peculiar orbital paths they […]

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Starship Blog

Members Newsletter – June

Principium 53

Members Newsletter – May

What’s up with 1998 KY26?

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