Shane Ross
@RossDynamicsLab
🚀 Engineering Math Professor, Virginia Tech Aerospace 🎥 Course Lectures & Tutorial Videos: http://is.gd/RossLab 📚 @Caltech PhD in Physics & Engineering
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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:…
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
I’m not sure what this is, but it had me at “manifold” and “signals”
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
An aero-braking near-Earth asteroid
A quick trip through the thermosphere turns newly-discovered asteroid ST25J47 from an Apollo to an Aten. It is no bigger than a meter.
While not gravitationally bound to Earth, 20-meter "quasi-moon" asteroid 2025 PN7 appears to circle the Earth as it follows a three-body orbit in the Sun–Earth system. Thanks to @tony873004 for the only orbit visualization I could find, in a rotating frame where both Earth and…
Watch Earth’s newest quasi-moon in motion. 🌍🌀 The new paper “Meet Arjuna 2025 PN7” confirms #asteroid 2025 PN7 is trapped in a quasi-satellite orbit, looping around Earth (in a rotating frame) from the 1960s to the 2080s. iopscience.iop.org/article/10.384…
"While spacewalking I realized something, I used to think I was scared of heights but now I know I was just scared of gravity" - NASA astronaut Reid Wiseman
Yes, but only for a while. In this simulation, 20 nearly identical pendulums start together, then diverge after a few seconds, the time horizon of predictability. Chaos doesn’t mean randomness, just sensitivity.
Every scholar who's published more than a handful of papers, has, at some point, "lied with statistics." Not maliciously, but just by simplifying. We pick the window, or the axis scale, or the subset. We tell a story from data that resists tidy storytelling. Communication is…
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