L.L. Richman's Spacetime Speakeasy
L.L. RichmanA look into a writer's life, plus aviation pics — and cats, because the feline overlords insist.
| Platform |  | Pricing | Only free issues | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 309 | Founded | 3 years ago | Last Issue | 9 days ago |
| Active | |||||
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llrichman.substack.comLatest Issues
A Tiny Moon Is Building Mountains Around Saturn
We spend a lot of time in science fiction imagining giant warships, planet-killing weapons, and gravity-bending technology.
Meanwhile, out at Saturn, a five-mile-wide moon is quietly building mountains.
Meet Daphnis.
This tiny, potato-sh...
Rogue AI’s ultimate shield? (And 15 free books)
If you’ve read any of my series — Battlefield Diplomacy, Vision Rising, The Chiral Agent, Enfield Genesis — you know I love world-hopping. I do my best to ground each premise in plausible science, but inevitably, these characters end up on...
MIT Just Simulated Time Travel + New Series
The movie Interstellar showed a dad sending messages from the future to his daughter in the past using gravity and a dusty floor. It sounds like pure Hollywood magic, but physicists at MIT just found a way this might actually work.
But fir...
Metajets: The 'Fuel-Free' Breakthrough for Interstellar Travel
The dream of reaching Alpha Centauri in a human lifetime isn’t just fiction anymore—it’s moving into the lab.
Researchers at Texas A&M have just demonstrated “metajets,” a breakthrough in light propulsion. Unlike previous designs, these mi...
Solar's biggest weakness just got fixed
I’ve aleways been a fan of solar. My dad, while at NASA, designed a theoretical solar satellite harvesting system that never saw the light of day (I know, bad pun). But solar has a big drawback: clouds.
Energy storage helps, but eventuall...
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| Subscribers | Engagement | 66 | Monthly Web Visits | ||
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| Accepts Sponsors | Estimated Cost per Ad | ||||
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Authors
The writers behind this newsletter.
L.L. Richman has written more than 20 books, both military science fiction and technothrillers, and has close ties to the special forces community.
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