Astra

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

Close proximity testing with two xenon thrusters in one of our large chambers.

@RahulRaghav_10 The new combustion chamber is designed to increase both the thrust and Isp of the engine while allowing us to manufacture chambers more quickly and with a much lower scrap rate.

@Astra curious what's the goal for the new combustion chamber design

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.

Astra Ships 110 Satellite Engines, Focuses on 2026 Test Flight of New Rocket: astra.com/news/astra-shi…

Honored to be included again. Our focus stays the same: doing the work that gets us back to the pad. #adastra

Congrats, @johnkrausphotos! You've captured so many unforgettable Astra moments — we can't wait to watch where your lens goes next with @NASAAdmin.

Congratulations @rookisaacman on your NASA confirmation! An exciting moment for NASA and the future of space exploration.

Xenon thruster firing during pre-flight testing in our 3-chamber vacuum. (Sound on!) In recent weeks, more Astra spacecraft engines have been placed in orbit and are now supporting maneuverability for customer satellites around the globe.

This Veterans Day, we honor all who have served, including the veterans in our own community — family, friends, partners, and teammates.

ICBMs aren’t the only threat. Think millions of drones, forward-deployed in thousands of orbital rockets, launched from hundreds of mobile launchers deployed in dozens of countries. Golden Dome must be global, responsive, mass-produced, and unstoppable. @Astra is building the pipeline. 🚀 #EconSpace @alokjha

30+ second hotfire provides data in thermal steady state, allowing us to further optimize our new first stage engine combustion chamber.

Sound on! Here’s the recent hotfire of Astra’s most powerful Rocket 4 first stage engine.

Astra plans mid-2026 first launch of Rocket 4 spacenews.com/astra-plans-mi…

Heading to World Space Business Week in Paris next week? Drop us a note — we'd love to connect: hello@astra.com #WSBW2025

Hotfire at our test facility in preparation for testing the new combustion chamber for the next-generation Astra first stage engine that will power Rocket 4.

Chris Kemp (@Kemp) took @Astra public in 2021 with a bold vision: low-cost rockets launching daily, bringing sovereign space access to every country on Earth. At its peak, the company was worth over $2B. Within two years, that valuation collapsed by 99%. Valley of Depth EP 011 brings Chris back on the show to go inside one of the most dramatic flameouts and attempted comebacks in the commercial space era. We discuss: – Why Astra’s SPAC-era promises didn’t survive contact with reality – What really went wrong with Rocket 3 and how much of that falls on Kemp – The decision to take the company private and buy it back for pennies on the dollar – How Astra raised $80M, and its attempt to raise another $100M+ – The quiet traction of its satellite propulsion business – Rocket 4, and whether this time is actually different – How Astra is being repositioned as a mobile, defense-aligned launch platform Full episode in comments 👇

Astra’s founder, chairman & CEO @Kemp talks with @itsmoislam of @payloadspace on launching rockets, building spacecraft engines, Rocket 4, and more. Watch: youtube.com/watch?v=mEwPws… Listen: podcasts.apple.com/us/podcast/bac…

In case you missed it, catch Astra founder, chairman and CEO @Kemp in conversation with @ashleevance about the journey Astra has been on and what’s next. Watch the full interview here: youtu.be/I_I_TS-dZdc?si…

Okay, people. @Kemp and I got the band back together to talk Wild, Wild Space and @Astra's $80m raise and return to the pad. Full episode of the pod here on X Timestamps 0:00:00 Introduction & Guest Chris Kemp 0:01:18 Astra's Journey and Current State 0:08:01 Taking Astra Private 0:10:17 New Leadership and Space Force Collaboration 0:12:18 Rocket Industry Landscape 0:14:22 Shifting to Larger Satellites 0:15:15 DoD Drone Launch Contract 0:21:19 Vision of Global Spaceports 0:24:25 Satellite Constellations and Dual Use 0:26:36 Global Telecom & Space Race 0:30:01 Open Standards & Space Interoperability 0:31:14 Life After Going Private 0:32:17 Lessons from the SPAC Era 0:34:03 Focusing on Rocket 4 0:36:15 Balancing Speed and Reliability 0:40:06 The Cost of Innovation 0:42:21 Fundraising and Customer Commitment 0:44:12 The Satellite Engine Business 0:45:09 Decentralized Constellation Vision 0:50:14 Future Plans and Series B 0:52:21 Why Kemp Keeps Going 0:54:20 What’s Next for Astra 0:56:06 Thoughts on the Competition 0:59:13 Sideways Rocket Explained 1:00:15 Vision for NASA's Future