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Some ideas on preventing cryogenic propellant boiloff in Starship during long duration cruise or while operating orbital fuel depots. The usual caveats apply! One of the major concerns with using Starship for the Human Landing System is that propellant (cryogenically liquid methane and oxygen) need to a) be transferred in orbit and b) maintained for the duration of the mission, which could be weeks, months, or years. In particular, no astronaut wants to board their Starship after a successful 6 week sortie on the Moon only to find the fuel’s boiled off and they’re stuck.  The trick lies in using energy …
a month ago

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More from Casey Handmer's blog

Why am I searched every time I go to Australia?

The Australian Border Force won’t stop searching me and my personal devices when I visit Australia. Despite being an Australian citizen, under Australian law, I have zero recourse to this continued flagrant invasion of my privacy. After two years of harassment I am publicizing this as a considered next step in an effort to make it stop.  This is somewhat different from my usual articles about space, energy, and technology – we will return to that theme shortly. As far as possible, I will relate only facts and keep editorializing to a minimum. I will update this post as the …

a week ago 1 votes
To Conquer the Primary Energy Consumption Layer of Our Entire Civilization

[Originally posted on the Terraform blog April 3, 2025.] Three years ago we set out to make cheap synthetic natural gas from sunlight and air. At the time I didn’t fully appreciate that we had kicked off the process of recompiling the foundation layer of our entire industrial stack.  Last year, we made cheap pipeline grade natural gas from sunlight and air and expanded our hydrocarbon fuel road map to include methanol, a versatile liquid fuel and chemical precursor for practically every other kind of oil-derived chemical on the market. Unlimited synthetic methane and methanol underpinning global energy supply is a good start, but …

a month ago 15 votes
California’s path to redemption

California is by far the richest and most powerful polity led by Progressive ideals, and it has taken a beating of late. In this post, I discuss a practical roadmap by which California must reclaim its mantle as the shining city on the hill, an embodiment of the positive attributes of Progressive ideals and material optimism, and once again become a target of aspirational upward mobility. This will not be an easy road. Decades of complacency have squandered enviable resources and potential. But I believe a strength of America is syncretism, with the marketplace of ideas providing robust competition for …

2 months ago 26 votes
What can we send to Mars on the first Starships?

As of today, it is 601 days until October 17, 2026, when the mass-optimal launch window to Mars opens next.  While I don’t have any privileged information, it’s fun to speculate about what SpaceX could choose to send on its first Starship flights to Mars. (Spoiler alert: Rods from the gods…) Over the next 600 days, SpaceX has a number of key technologies to demonstrate; orbit, reuse, refill, and chill. It’s hard to make predictions, particularly about the future. I’m optimistic that SpaceX will have multiple fully fueled Starships ready to go in October next year, to be followed by …

2 months ago 42 votes

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Ozempic and Muscle Mass

Are GLP-1 drugs causing excess muscle loss compared to non-pharmacological weight loss?

9 hours ago 2 votes
Floating Nuclear Power Plants

This is an intriguing idea, and one that I can see becoming critical over the next few decades, or never manifesting – developing a fleet of floating nuclear power plants. One company, Core Power, is working on this technology and plans to have commercially deployable plants by 2035. Company press releases touting their own technology […] The post Floating Nuclear Power Plants first appeared on NeuroLogica Blog.

20 hours ago 2 votes
The evolution of psychiatry

How to separate order from disorder

16 hours ago 1 votes
The Molecular Bond That Helps Secure Your Memories

How do memories last a lifetime when the molecules that form them turn over within days, weeks or months? An interaction between two proteins points to a molecular basis for memory. The post The Molecular Bond That Helps Secure Your Memories first appeared on Quanta Magazine

2 days ago 1 votes
An 80,000-year history of the tomato

Creating the perfect vegetable

2 days ago 1 votes