I occasionally tweet about fast and/or flamey stuff. Opinions are my own. Formerly @CU_SRL. He/Him
Boulder
Joined August 2021
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Hayden 🚀 retweeted
"University researchers built a satellite that tracks people from low Earth orbit and dispatches a 5 kg payload to within .1 meter of their position, traveling at Mach 25 to anywhere on Earth in under 5 minutes. They suggest it could be used to deliver greeting cards."
Purdue University's IDEAS Lab built an autonomous drone that tracks runners through dense forests completely without GPS or cloud networks.
By running 3D LiDAR mapping and obstacle-avoidance AI entirely on-chip, it can weave under tree canopies and predict target movement through blind spots in real time.
Massive implications for next-gen search & rescue and edge AI.
Hayden 🚀 retweeted
On Oct. 5, we test-fired Crucible, a CU student-built R-class motor with a carbon-fiber casing for Sunbeam’s spaceshot mission.
Despite a nozzle anomaly, the test validated key design elements, and everyone is safe. Thanks to our sponsors & alumni!
Hayden 🚀 retweeted
I love when people who don’t know anything speak authoritatively on a subject and gain a ton of traction
Just adding my 2 cents to this discourse because it involves some engineering that Hibernaculum deals with;
1) There are what are known as ''mach diamonds'' clearly visible which can only be produced by liquified gases ie rocketry. Not fans. Not compressed gas, or air.
Readers added context they thought people might want to know
Mach diamonds appear in supersonic exhaust from compressed air cold-gas thrusters, as used in the Tesla Roadster demo; they are not exclusive to rocketry or liquified gases. The vehicle uses an underbody fan suction system for surface adhesion alongside thrusters.
paultan.org/2026/10/16/tes…
en.wikipedia.org/wiki/Shock_dia…
evxl.co/2026/10/16/tes…
Hayden 🚀 retweeted
I'm not an Elon hater.
I'm just telling you the Honest Truth:
This is a marketing stunt.
The technology is quite old.
Just nobody ever thought of bolting it on a car.
Because it's pointless.
Porsche or Ferrari could also build something like this if they wanted, but they don't, because it's not worth it for them.
It's worth it for Elon though, because his entire brand is all about having the halo of futurism.
His marketing scales especially well with tech gimmicks like this, which is why he is financially incentivised to do them, while others aren't.
Again, I'm not hating, but actually educating yall.
This is not engineering genius.
It's marketing genius.
Hayden 🚀 retweeted
Last weekend at Black Rock (BALLS 34), I flew my (near)-hypersonic homebuilt experimental 54mm rocket to Mach 4.96 (5372 fps)! To my knowledge, this is the fastest single-stage rocket ever flown and fully recovered by any amateur, among other records in student rocketry.
Hayden 🚀 retweeted
Crew-13 launch as seen from their destination. Photo wizardry by Dubrov. See you soon Watty, Luke, Josh, and Sergey.
Hayden 🚀 retweeted
Which means its time for another poll! What happens first:
4%JWST launches
7%SLS test flight
28%Starliner crew flight
61%Starship orbital flight
4,621 votes • Final results
Hayden 🚀 retweeted
We’re getting ready to fire Crucible, our composite R motor and the largest motor in SRL history, in the coming weeks. We’re also building Sunbeam, our spaceshot vehicle.
If you’d like to support us, our giving link is live! givecampus.com/campaigns/502…
Thank you for supporting SRL!
Hayden 🚀 retweeted
Shuttle-era NASA concept art in the National Archives Catalog is notoriously hard to browse, so I put it all on Flickr.
Shuttle development
Space Station Freedom
Early ISS/Alpha
Space Operations Center
NASP
Space Based Solar Power
and more
flickr.com/photos/204354598@…
