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What if a spacecraft could cycle between Earth and Moon orbits, performing multiple circuits of each, naturally and indefinitely, with zero propulsion? We’ve discovered a new class of stable, prograde, low-energy cycler orbits that do just that. Why these orbits matter:…
It’s a schematic of the Interplanetary Transport Network, an idea I pioneered en.wikipedia.org/wiki/Interplan…
The Duffing system is one of the best illustrations of bounded chaos, and is physically realizable.
The Duffing oscillator is one of the simplest systems that can fail chaotically....and, to steal Ian Malcolm’s language from Michael Chriton's Jurassic Park, the reason it fails is because of the behavior of the system within phase space. In this scene, every point is one copy…
A swirl of area-preserving geometry: chaos made via stretching and folding phase space
We know gravity pulls things together in space...but have you ever seen what it does in phase space? In this scene we're not watching a blob of matter in x–space. We're watching a thin probability sheet in (x, v).... position–velocity space... being pulled by its own gravity. In…
Jupiter on the move, trailed by its cosmic entourage of asteroids. The Trojan swarms leading and following the giant, and the triangular Hilda ring pulsing in resonance. A beautiful snapshot of orbital choreography.
This map shows the radioactive cloud moving through Europe after the 1986 Chernobyl disaster. This was super scary and set off a strong anti-nuclear sentiment. To this day the Green political movement is linked to its anti-nuclear roots. Source: buff.ly/30L9Qu9
The biggest volcanic eruption ever seen from space, captured by two different satellites on January 15, 2022.
I asked for the primes, in order, my younger son showed me this youtu.be/NHEaYbDWyQE?si…
youtube.com
YouTube
Michael Says Prime Numbers for 3 Hours
The pen is mightier than the keyboard because of the speed limit. You can’t write as fast as people talk, so every sentence demands a choice: Does this matter? Learning happens in that tiny pause before the ink hits the page.
It's time to remove laptops from classrooms. 24 experiments: Students learn more and get better grades after taking notes by hand than typing. It's not just because they're less distracted—writing enables deeper processing and more images. The pen is mightier than the keyboard.
Roughly 1 / log N of the natural numbers less than N are prime.
Shuttle → throwing switches nonstop Dragon → flies itself & fixes its own problems Progress is real. Next stations need to be built to keep evolving.
I've had the chance to fly to the space station on different spacecraft over the years and it's very easy to see the progression of technology. The Dragon is pretty much hands off, it has the ability to detect and correct a failure or abnormality, whereas in the shuttle we were…
Loading bars are just projections of higher-dimensional dynamics
ESCAPADE will spend a year looping near Earth before slingshotting to Mars in a single Oberth kick. Wild orbit. Smart physics.
The ESCAPADE mission to Mars is about to launch. It will stay near Earth for about 1 year before using an Oberth maneuver to send it to Mars.
Before the age of drones or satellites, Victor Navlet ascended in a hot-air balloon and painted this jaw-dropping panorama of 1855 Paris, over 10,000 buildings, down to the tiniest window. Proof that human ingenuity beats tech every time.
1855 painting of Paris from above by Victor Navlet [📹 Mathieu Nozieres]
Finally shutdown ends
On Titan, methane falls as rain and rivers flow into seas — and we landed there!
Farthest ever landing. Titan landing. It's a shame many people don't know we landed on a moon of Saturn.
It works
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