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You are here: Home / Starship Blog / ‘Oumuamua: The Mystery Unfolds

‘Oumuamua: The Mystery Unfolds

20 August 2023

Adam Hibberd

Those of you who have been following my Project Lyra blogs know that I have over the past year or so done some extensive analysis of 'Oumuamua's trajectory. You may refer to previous posts on the i4is website to get an understanding of exactly what I have been up to, or alternatively continue reading below.

'Oumuamua was, as most of you know by now, the first interstellar object (ISO) to be observed passing through our Solar system, and a very peculiar beast it was too.

Its trajectory was calculated accurately as it was observed passing by Earth, and its brighness diminshed with increasing distance until even the Hubble Space Telescope could observe it no more.

You will probably also know of the non-gravitational force that was measured by a more refined determination of its orbital path, which can be found written up in this paper here.

I decided to go beyond this and look at the trajectory from a wider view-point. Was there anything at all unusual in the orbit 'Oumuamua followed suggestive of some kind of pattern, or even intention?

The results surprised me somewhat and they may also surprise you. Hence to save you the trouble of reading all my previous posts on the subject, I recorded a presentation for my YouTube channel which summarises the whole investigation. It can be found here:


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Principium 53

3 June 2026

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

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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 […]

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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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Adam Hibberd Many readers in-the-know will have heard of the future ESA ‘Comet Interceptor’ mission, due to launch in 2029. For those not-in-the-know it is a spacecraft desgined to loiter at the famous Sun/Earth Lagrange 2 (L2) point for a few years, waiting for a ‘pristine’ Oort Cloud comet to come flying in to the […]

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Principium 53

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What’s up with 1998 KY26?

Mission to an Interstellar Object

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