Jed McCaleb

founder of Stellar Development Foundation

[Jed McCaleb @JedMcCaleb]

@arram I used to think they should just make the goal twice as big but then someone pointed out it is the most popular sport in the world. People like the randomness so the best team doesn't always win.

[Ashlee Vance @ashleevance]

There's a race to get the first commercial space station up in orbit. Boosted by an original $1 billion investment from @JedMcCaleb, @vast has been sprinting to get to space first.

We went to Long Beach to check out Vast's Haven-1 space station that could fly next year and to see what a more modern space station looks like.

Enjoy!!

[Astera Institute @AsteraInstitute]

We recently launched an essay competition for which scientists described structural problems they run into. With nearly 200 submissions, we decided to give out 8 awards, instead of 3. A quick summary here 👇 1 / 5

[Ashlee Vance @ashleevance]

The ISS is old AF. But, thankfully, we have replacements on the way in the form of commercial space stations.

We recently went to @vast to see the progress they are making on the Haven-1, which should fly next year. It will have room for four people and science labs and is a much more modern twist on space life.

We saw their manufacturing operations, food R&D program, and I learned how to pass gas in orbit.

[Governor Gavin Newsom @CAgovernor]

The greatest chapter in space exploration since the original Apollo lunar missions is underway — and California is writing it.

With Golden State aerospace companies like @Vast bringing about cutting-edge commercial space technology, the future looks bright.

[Raja Chakravorti @rajachak75]

Big news, and I'm on 🧵 for the second time in as many weeks,

Last week, @StellarOrg and @The_DTCC announced a partnership to bring tokenized securities settlement to Wall Street.

Today, @MoneyGram launched MGUSD - their own dollar-backed stablecoin - built on Stellar. MGUSD is issued by @stripe 's Bridge, with smart contracts from @m0 and wallet infrastructure from @FireblocksHQ. It is live in the US today, rolling out globally to 60 million customers across 200 countries and 500,000 retail locations.

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[Jed McCaleb @JedMcCaleb]

Very honored to have France as part of the first mission to Haven-1

[Vast @vast]

🇫🇷 Today at Choose France, President @EmmanuelMacron announced a historic agreement with Vast for 2 astronaut missions: @Thom_astro to the International Space Station and @Arno_astro to Haven-1. Vast will also establish its European Headquarters in Paris. https://t.co/zOGyyruJwN

[CNES @CNES]

🚀Deux missions spatiales impliquant des astronautes français ont été annoncées aujourd'hui.

@Thom_astro et @Arno_astro voleront en 2027 dans le cadre d'un accord entre la France et la société Vast.

👉Tous les détails dans notre article.
https://t.co/oPGDKpTP5l

#PAM6 #Haven1

[Jed McCaleb @JedMcCaleb]

Stellar continues to be one of best blockchains for real world use.

[Depository Trust & Clearing Corporation @The_DTCC]

DTCC and the Stellar Development Foundation announced today plans to enable the tokenization of DTC‑custodied assets on the @StellarOrg network. This collaboration advances DTCC’s multi chain strategy and expands how traditional assets move across digital ecosystems.

DTC‑tokenized assets are expected to be made available on the Stellar network in the first half of 2027, supporting the evolution of a more open, interoperable, and efficient financial ecosystem.

Get the full story: https://t.co/YCWHZDiLl5

[Stellar @StellarOrg]

Today, @The_DTCC and SDF are announcing plans to enable the tokenization of DTC-custodied assets on Stellar.

The connection supports the rapid conversion of traditional assets into tokenized form, and the full asset lifecycle, including corporate actions and reporting.

[Feross @feross]

Today is a big day for @SocketSecurity. We just raised a $60M Series C at a $1B valuation, led by @ThriveCapital with participation from @a16z, @AbstractVC, and @CapitalOne Ventures. Total funding is now $125M.

Four years ago, we started Socket because open source dependencies were flowing into production faster than anyone could vet them. AI has massively accelerated that. Code is being written, shipped, and deployed before any human reads it. Security has to operate at that same speed.

One data point from Thrive's diligence that I keep coming back to: they first discovered Socket because @cursor_ai, @OpenAI, and @AnthropicAI all independently told them it was the most important security tool they'd adopted for AI-driven development. Three of the most sophisticated AI companies converging on the same vendor unprompted.

Since our Series B, Socket has grown to more than 20,000 organizations, protecting over 1.5 million repositories and blocking more than 1,000 supply chain attacks every week. The team is now over 100 people.

Three out of five FAANG companies are Socket customers. So are the companies building the most ambitious AI products: @AnthropicAI, @cursor_ai, @xai, @figma, @vercel, @Replit, @scale_AI, @GustoHQ, @Mercadolibre, and @cribl_io, alongside Fortune 100s in financial services and global media.

What we've shipped since the last round:

• Socket Firewall blocks malicious packages at install time, before they reach a developer's laptop or CI pipeline. Free for everyone.

• Reachability analysis via our acquisition of Coana, eliminating 50-80% of irrelevant vulnerability alerts by focusing only on CVEs that are actually exploitable.

• Socket Certified Patches for remediating exploitable CVEs in seconds without waiting on upstream maintainers.

• Coverage extending to browser extensions, editor extensions, MCP servers, and AI tools via our acquisition of @secureannex.

When the Axios compromise hit, our detection systems flagged the malicious dependency within six minutes. Within 24 hours, more than 2,000 organizations onboarded to Socket to block it.

Where the funding goes: deeper investment in Firewall, massively expanding Certified Patches, moving protection closer to every point of install across the developer toolchain, and new product launches pushing Socket into a category we haven't entered before.

We're hiring across engineering, sales, customer success, and threat intel.

❤️ Thank you to our customers, investors, and the open-source community for your support. Together, we’re making software safer for everyone.

[Perceptron.cloud @perceptroncloud]

Dyson Swarms or bust

[Jed McCaleb @JedMcCaleb]

If you need a high power satellite get in touch!

[Vast @vast]

Vast is expanding into high-power satellites. Introducing our new line of high-power satellite buses that leverage the technologies we’ve developed in-house for our Haven-1 space station and validated with the success of our Haven Demo mission. https://t.co/aITDUjQOzF

[Arram @arram]

Asked Claude:

'There's a meme called the "fix everything easily switch". What policies do you think are the best candidates for being a real fix everything switch in the US? Give me your top ten, your confidence, your reasoning, and why a given policy has not been implemented.'

[SpaceNews @SpaceNews_Inc]

Overview Energy to provide space-based solar power for Meta data centers https://t.co/LaE5jZQ411

[Stellar @StellarOrg]

Massive milestone 🔥

Stellar has crossed $2 billion in RWAs on the network, driven by partners like @FTDA_US, @Spiko_finance, @OndoFinance, and more.

This is onchain growth in action.

[Josh Albrecht @joshalbrecht]

mngr: programmatically manage 100s of claude code sessions in parallel 🤖

open source today.

lets you do things like:
— for each open GitHub issue, create a PR
— for each flaky test in the past week, fix it
— for each rule in style guide, scan codebase & fix all instances

runs any agent: @claudeai, codex, @opencode, etc.

runs on any compute: locally, @modal, @Docker, or anything you can ssh into.

[Jed McCaleb @JedMcCaleb]

@seemaychou @PracheeAC Paul Ehrlich was out there proving your points!

[The Honest Broker @RogerPielkeJr]

This from Paul Ehrlich will make you think

"If I'm always wrong so is science, since my work is always peer-reviewed, including the POPULATION BOMB and I've gotten virtually every scientific honor."

Link in reply

[Astera Institute @AsteraInstitute]

We're expanding our life sciences work through a new division Radial led by @beckypferdehirt as CEO. Becky be work closely w @PracheeAC @seemaychou to help lead experiments with infrastructure and approaches to funding, enabling, and publishing science 1/

[Vast @vast]

Vast has secured $500M in funding to advance next-generation space station technologies and infrastructure for America and its allies. https://t.co/m0SqSYWT5F