Co-Founder & CEO, @Vaxonspace | Building air-breathing VLEO satellites for missile defense and AI connectivity | Author, Vanquishing Cancer | Go Blue! 〽️
San Jose, CA
Joined January 2020
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@Vaxonspace is building the neural network in space, one neuron at a time.
See how our VLEO satellites can help create the high-speed connectivity and computing infrastructure needed to extend AI across Earth.
Steven P. Shepard retweeted
Yax went CRAZY last night 🔥
31 pts
12 rebs
6 asts
Warriors dub
The kid is HOOPIN
Steven P. Shepard retweeted
We completed the System Requirements Review (SRR) for Neuron-1, our first satellite mission.
An SRR confirms the requirements are complete, consistent and achievable before the design is built around them. Everything after depends on it.
Next up: the Preliminary Design Review.
Steven P. Shepard retweeted
JUST IN: @XonaSpace raised $250M at a $2.45B valuation
Led by @FutureJurvetson's Future Ventures
• Building a commercial GPS rival in low orbit
• Founded by ex-SpaceX engineer @FoundTheSpace
Steven P. Shepard retweeted
Before @AexodusCapital, @chjango helped get the funding for the Curiosity and Perseverance rovers at @NASAJPL. Now she's an early backer of us at Vaxon Space. Vaxon and Aexodus will both be at SF Tech Week this week.
Steven P. Shepard retweeted
Every satellite in very low Earth orbit pays a tax to the atmosphere.
Lower means stronger signals and sharper images. It also means the thing slowing you down is the thing you’re flying through.
Steven P. Shepard retweeted
Spectrum and ground networks are half of direct-to-device. The satellite partner hasn’t been chosen yet, and the orbit it flies in matters just as much. Lower orbits help the link to a phone, but only if the satellites can stay there. Which orbit they pick is the one to watch.
Steven P. Shepard retweeted
The Eastern Range hit 100 launches a year in 2025. A 2017 plan expected that by 2030.
Cape upgrades to roads and utilities take about three years for phase one, maybe 5 to 10 overall. That's the case for a third range: demand is outrunning how fast the Cape can be rebuilt.
Steven P. Shepard retweeted
Our CEO @StevenPShepard joined a panel at the University of Michigan Space Physics Research Laboratory’s 80th Anniversary Open House.
From left: Sue Lepri, Patrick McNally, Elena Adams, @gdibracc and Steve.
Congratulations to SPRL on 80 years of building instruments for space.
Steven P. Shepard retweeted
🚨 IT'S OFFICIAL: Elon Musk is giving $10 BILLION DOLLARS in SpaceX shares to America's children, directly, ON HIS OWN
This is the DEFINITION of a patriot! 🇺🇸
Elon's critics will STILL take the money for their kids! 🤣
"The move is designed to give young people a direct financial interest in the future of space exploration and technology."
With roughly 72 million kids in America and SpaceX shares at about $146, that's around $10.5 BILLION
And he says it's only the FIRST of many.
While Democrats call him a villain, Elon is handing ownership in America's greatest company to every child in the country!
Steven P. Shepard retweeted
More spectrum for direct-to-device raises a question about the satellites: lower orbits mean stronger signals to phones, but only if the satellites can stay there. That’s the problem we’re working on at Vaxon.
READ: FCC Proposes to Streamline Supplemental Coverage from Space and Direct-to-Device Rules
"The rules proposed… would more than double the amount of spectrum available for supplemental coverage from space.” insideglobaltech.com/2026/10…
Steven P. Shepard retweeted
Last Friday, our CEO @StevenPShepard presented Vaxon’s dual-use mission of missile defense and AI connectivity at Demo Day with @SantaClaraUniv 's Bronco Venture Accelerator.
We’re actively raising. If you’re an investor or partner who wants to learn more about what we’re building, send us a message.
Steven P. Shepard retweeted
Thank you to @starburstaero, Outpost, the @USSpaceForce, @FenwickWest, and @ISS_CASIS, and to OE investors Context Ventures, Stellar Ventures, and @CIRI.
Steven P. Shepard retweeted
The LA Edition of @Techweek_ was a good one for us.
Monday we pitched at Hardware Meets Intelligence, co-hosted by @starburstaero and Outpost. Wednesday we joined the Orbital Edge Accelerator networking day and reception, hosted by @ISS_CASIS.
#latechweek