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:…
What if Juno left Jupiter to get a closer look at interstellar comet 3I/ATLAS? With a couple of burns, Juno can get as close as 25 million km. Purely hypothetical, fun orbital mechanics! 🔭 Thanks @hibberdadam994 @I4Interstellar for the research and trajectory data.
A rare visitor from another star. ESA's Mars orbiters just captured the first images of interstellar comet 3I/ATLAS, only the third ever seen after ʻOumuamua and Borisov. Born before our Solar System, now passing through it.
☄️ #3I/ATLAS comet update! On 3 October, our ExoMars Trace Gas Orbiter (TGO) turned its eyes towards interstellar comet 3I/ATLAS as it passed close to Mars. Together with Mars Express, ExoMars TGO had the closest view of the comet of all of our spacecraft. It looked towards the…
A reminder of how dynamic near-Earth space really is. And how much of it we’re still discovering.
10 #asteroids passed closer than the Moon in a 5-day period from September 23-28. All were discovered this month. The largest up to 41 meters wide. #astronomy
An Earth–Moon multi-orbiter cycler: stable, repeating, and periodic in both rotating and inertial frames. This rare dual-periodic orbit loops Earth multiple times, then the Moon, repeating every 109 days, no propulsion required. 👉🏽Details in the paper: tinyurl.com/cyclerpaper
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:…
Whatever children do when learning language, it isn’t what machines do. No vast archive, no brute-force statistics. Our minds work in leaps, not averages. We don’t compute reality. We grasp it.
🚨 Our latest paper just came out in Science, where we report a simple, historical pattern: From 1980 to 2020, Republican lawmakers consistently funded science at a higher level than their Democratic counterparts. four years in the making. Led by @zfurnas thread 1/n
How does a high-energy missile glance off a target? Reflection, absorption, or something stranger? Either way, worth public disclosure and scientific scrutiny. What is that thing ?
U.S Congress on Tuesday held its third hearing into the UFO phenomenon, during which a video was released that shows a U.S. military Hellfire missile bouncing off a fast moving unknown object that was being tracked by a military drone off the coast of Yemen on Oct. 30, 2024. 1/2
If you want a deep mathematical dive into Lagrange point manifolds, a classic is this 1985 paper by Llibre, Martínez & Simó. I learned a lot from this one; beautiful analysis of invariant manifolds in the restricted 3-body problem. Article: doi.org/10.1016/0022-0…
Ketchup and fries, what’s your style?
26 โหวต · ผลลัพธ์สุดท้าย
Some asked to see the full lecture behind this discovery. Here it is: my conference talk on new Earth-Moon multi-orbiter solutions to the three-body problem. ⚠️ Fair warning: it’s heavy on math, light on applications. Also on YouTube: youtu.be/CgJE2hyC-mw?si…
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:…
Two asteroids just passed closer than GEO satellites. Events like this are routine, but each is a reminder of why asteroid tracking matters.
In the past 3 days, two asteroids — 2025 PF2 and 2025 PU1 — passed closer than the geostationary satellites delivering our preseason #NFL games this weekend. #asteroid #astronomy
A smarter, greener alternative: instead of losing over half a million disposable radiosondes yearly (!), the Meteoglider comes home and flies again. Reuse is the future of weather sensing.
600'000 radiosondes ($100M) are lost in nature each year after being used for only 2h. The Meteoglider returns to home after each flight to be reused.. it has been tested by national weather services in Switzerland, France, Spain and Denmark. @NOAA it's your turn!
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