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Centauri Dreams — Imagining and Planning Interstellar Exploration

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Title of Centauri Dreams — Imagining and Planning Interstellar Exploration: "Centauri Dreams — Imagining and Planning Interstellar Exploration"

Publisher:  frank65
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Building an Interstellar Philosophy

As the AI surge continues, it’s natural to speculate on the broader effects of machine intelligence on deep space missions. Will interstellar flight ever involve human crews? The question is reasonable given the difficulties in propulsion and, just as challenging, closed loop life support that missions lasting for decades or longer naturally invoke. The idea of starfaring as ...

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Jupiter’s Impact on the Habitable Zone

I’ve been thinking about how useful objects in our own Solar System are when we compare them to other stellar systems. Our situation has its idiosyncrasies and certainly does not represent a standard way for planetary systems to form. But we can learn a lot about what is happening at places like Beta Pictoris by studying what we can work out about the Sun’s protoplanetary dis...

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Interstellar Mission to a Black Hole

We normally think of interstellar flight in terms of reaching a single target. The usual destination is one of the Alpha Centauri stars, and because we know of a terrestrial-mass planet there, Proxima Centauri emerges as the best candidate. I don’t recall Proxima ever being named as the destination Breakthrough Starshot officially had in mind, but there is such a distance bet...

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Teegarden’s Star b: A Habitable Red Dwarf Planet?

I have a number of things to say about Teegarden’s Star and its three interesting planets, but I want to start with the discovery of the star itself. Here we have a case of a star just 0.08 percent as massive as the Sun, an object which is all but in brown dwarf range and thus housing temperatures low enough to explain why, despite its proximity, it took until 2003 to find it...

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A Dark Object or ‘Dark Matter’?

We are fortunate enough to be living in the greatest era of discovery in the history of our species. Astronomical observations through ever more sensitive instruments are deepening our view of the cosmos, and just as satisfyingly, forcing questions about its past and uncertain future. I’d much rather live in a universe with puzzling signs of accelerated expansion (still subje...

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