Astra

California company that sells electric thrusters for satellites and is building Rocket 4, a small launcher meant to fly often and cheaply, after retiring its failure-prone first rocket and going private in 2024.

Products, by altitude

Low Earth orbit · 160–2,000 km

In service
Spacecraft Engine
Electric thrusters that help satellites move and hold orbit

Launch · From the pad to orbit

In development
Rocket 4
Small rocket for frequent, low-cost satellite launches

Milestones

Jul 2024 Completed a merger that made it a private subsidiary of a new parent company, with founders Chris Kemp and Adam London rolling over their shares, and delisted from Nasdaq.⁠¹

Sources

Astra Space Form 8-K via SEC EDGARJul 18, 2024
The American Bazaar (citing Reuters)Aug 14, 2026

Updated Oct 22, 2026 · How we source facts · Suggest a correction