It struck me a while ago that I have developed this extremely effective tool for solving interplanetary trajectories (OITS), so how would I be able to exploit it for alternative applications – applications which would be beyond its originally intended purpose, that of designing trajectories for chemically propelled spacecraft (and in the process assuming impulsive […]
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Mars Ride-Share: an Opportunity Not to be Missed
Adam Hibberd I was recently discussing with my colleagues across the pond, the potential for mounting a cheap mission to some alternative, yet interesting destination in the inner Solar System, by exploiting a ‘ride-share’ with a more important mission, possibly one organised by NASA or ESA. It struck me that since there have been, and […]
Members Newsletter
New i4is Search Facility Using the alert database access kindly provided by our friends at the Interstellar Research Group (irg.space) we have created an enhanced search facility that searches all database fields as you type. We will be adding features to this search in the near future, including filtering by category. The database can be […]
Principium 41
The May 2023 issue of Princpium is now available and has already gone out to subscribers.
Avi Loeb takes on Project Lyra, we reply
Avi Loeb, whose name is firmly associated with the alien artifact speculation regarding ‘Oumuamua has posted a blog article on Project Lyra. This is not the first time he reacts to Project Lyra and we see this as another opportunity to put forward our point of view. We agree that the only way to settle […]
‘Oumuamua a hydrogen-water iceberg? i4is illustrates
‘Oumuamua, the interstellar object discovered in 2017 is hypothesized to be a hydrogen iceberg: Bergner, J. B., & Seligman, D. Z. (2023). Acceleration of 1I/‘Oumuamua from radiolytically produced H2 in H2O ice. Nature, 615(7953), 610-613. Although this has been a much discussed hypothesis, the dominant image of ‘Oumuamua used in the media is still the […]
BBC/Bilibili Series i4is Contribution: Rendezvous with the Future
Rendezvous with the Future (未来漫游指南) (BBC/Bilibili) is a major streaming TV series on the future of humanity, which has been released in China and has so far been watched by over 55 million people. It is narrated by the internationally famed Chinese SF author Liu Cixin. Our Executive Director Dr. Andreas Hein acted as an […]
Members Newsletter
Preprints from Principium 41 for members You will also find preprints of the following P41 article in your members only pages – IRG23 Preview: 8th Interstellar Symposium, McGill University, Montreal, July 10 – 13, 2023 Cost-Optimal System Performance Maps for Laser-Accelerated Sailcraft Project Lyra: What SpaceX could do: The Way to Go and the Launcher […]