Smash Notes
Why Would Anyone Put a Data Center in Orbit? · Sourcery

Sourcery

Inside Starcloud’s $2B Space Factory

I went inside Starcloud’s headquarters in Redmond, Washington, right outside of Seattle, to tour the $2.3B company building AI data centers in space. Philip Johnston, CEO & Co-Founder led the tour, alongside technical features with Co-Founder & CTO Ezra Feilden, Co-Founder & Chief Engineer Adi Oltean, as well as Bailey Montaño, Miguel Rivera and Camilo…

Notes

  1. Philip Johnston says Starcloud bought a secondhand broken vibration table for 200 grand after the team could not find a table in the US that would test a… Full answer

  2. Philip Johnston says Starcloud is based in the Seattle region because 90% of all satellites launched in the last few years by mass were designed, built, and… Full answer

  3. Adi Oltean says Starcloud cools computers in space with the liquid cooling that data centers on Earth switched to in 2025, because liquid cooling is the only… Full answer

  4. Ezra Feilden says Starcloud 3 is the company's largest platform, a vehicle of about two tons, and as many as 50 can deploy on one Starship launch. Full answer

  5. Ezra Feilden says booking a Falcon 9 rideshare is unbelievably easy. Full answer

  6. Philip Johnston says a data center in orbit gets cheaper than one on Earth once launch falls to about $500 a kilogram. Full answer

  7. Philip Johnston says Starcloud One runs inference on satellite imagery in orbit, so the coordinates of a vessel can come down in minutes rather than hours and… Full answer

  8. Philip Johnston says everyone leaves the building for a Starcloud 2 vibration test because a xenon tank under the satellite has about half the explosive power… Full answer

  9. Miguel Rivera was the welder for Helion Energy, where the team built fusion generators, and he ran their fabrication shop for more than a year before becoming… Full answer

  10. Bailey Montaño started at SpaceX in aerospace, spent about four years there, tried biotech and consumer product design, and then spent three years in fusion… Full answer

  11. Philip Johnston says shooting down a satellite is a lot harder than blowing up a data center in Virginia, because satellites travel at about 17,000 miles an… Full answer

Related notes

Plays from this note through the rest of the episode.

Weekly highlights

One letter a week.

The notes worth hearing, with the minute they were said.