Mobile, containerized launch on demand and flight-proven satellite propulsion for responsive access to space. On a mission to Improve Life on Earth from Space®

Alameda, California
Rocket 4.0 first stage engine. A mixture ratio sweep at full throttle.
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Rocket 4.0 first stage engine hot fire. Day in, day out on the test stand.
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An @Astra spacecraft engine firing in our large vacuum chamber — 5 years of flight heritage with 100% on-orbit reliability. Learn more at astra.com/satellite-engine.
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Another hot fire as our test cadence ramps (sound on this time).
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Rocket 4.0 flight feature complete engine, running a full characterization sweep across its operating range.
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Transporter-17 just delivered more @Astra satellite engines to orbit. Grateful to support our customers and partners on this @SpaceX mission!
Our 17th Transporter rideshare mission is targeted to launch tomorrow from California and will deliver 81 payloads to orbit → spacex.com/launches/transpor…
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250 years ago, a bold idea took flight. Today, we carry it upward. @Astra is proud to build and provide American space products and services — responsive, sovereign, and made to serve the nation that made it possible, and its allies. Happy Fourth of July from Astra.
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EXCLUSIVE INTERVIEW: @Astra has built a mobile launch system designed to send rockets into space within 48 hours, with the rocket and launch equipment transported in standard 40-foot shipping containers. @Kemp, CEO of Astra Space, sees sovereign access to space as critical to national security. With launch capacity constrained and traditional spaceports tied to fixed infrastructure, Astra wants to give the United States and its allies the ability to rapidly deploy launch capability around the world. The vision is a distributed network of mobile spaceports that strengthens resilience and deterrence and could be established almost anywhere, even in a Walmart parking lot.
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Astra retweeted
Nearly a decade ago, Adam and I started Astra with a simple idea: launch shouldn’t be limited to a handful of places on Earth. Today, our next-generation rocket is sitting in the English countryside after crossing the Atlantic in standard shipping containers. The future of launch is everywhere.
Astra’s next-generation rocket just crossed the Atlantic. Rocket 4.0 arrived in the UK the same way it’s designed to launch: in standard shipping containers. Mobile. Containerized. Orbital. The future of launch is everywhere.
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Astra’s next-generation rocket just crossed the Atlantic. Rocket 4.0 arrived in the UK the same way it’s designed to launch: in standard shipping containers. Mobile. Containerized. Orbital. The future of launch is everywhere.
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Join @Astra Founder & CEO @Kemp at Inside the Dome on Thursday, May 14th, alongside Golden Dome program leadership, primes, and capital: events.payloadspace.com/insi…
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Astra retweeted
STACKED lineup for our Inside the Dome event on Thursday. - Gen. Michael Guetlein (Golden Dome) - Mrs. Marcia Holmes (Golden Dome) - Hon. Michael Duffey (DOW) - Tim Sheehy (U.S. Senate) - Mark Messmer (U.S. House) - Jeff Crank (U.S. House) - Greg Kuperman (Anduril) - Even Rogers (True Anomaly) - Dan Piemont (Long Wall) - John Plumb (K2 Space) - Chris Taylor (Aalyria) - Stephen Twitty (Accelint) - Johnathon Caldwell (Lockheed) - Eric Romo (Impulse Space) - Jake Swenson (Accelint) - Susanne Hake (Vantor) - Bryon Hargis (Castelion) - Quentin Donnellan (Accelint) - Matthew Parisi (Vitesse) - Kathryn Harris (Scale AI) - Chris Kemp (Astra) - Justin Fiaschetti (Inversion) 🏛️ May 14th, DC. Last chance ticket still available.
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We're heading to @SpaceFoundation's 41st Space Symposium and we'd love to connect. If you're in Colorado Springs April 13th–16th and want to talk launch services, satellite engines, or what's next for Astra — reach out at hello@astra.com. See you there! #spacesymposium #spacetech
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Congratulations to the Artemis II crew, and to all the teams at @NASA and beyond who made this possible. An inspiring moment for everyone who cares about space.
For the first time in over 50 years, humans are Moonbound. At 6:35 p.m. EDT (2235 UTC) NASA’s Space Launch System rocket and the Orion spacecraft lifted off from the agency’s Kennedy Space Center in Florida, sending four astronauts on a planned test flight around the Moon and back. go.nasa.gov/4tlRfRS
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Want to build the future of space? From the factory floor to the launch pad to orbit — we're hiring. Come get your hands on hardware that matters: astra.com/careers #adastra
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Close proximity testing with two xenon thrusters in one of our large chambers.
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This week on the test stand: the Astra team continues pushing the run box limits of our Rocket 4.0 first stage engine combustion chamber.
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