Drone warfare in space: Swarms of autonomous, laser-shooting cubesats could defend Western satellites in orbit
AI-summarised brief · reviewed before publication
In May 2026, four Russian military satellites performed a close‑approach maneuver on ICEYE‑X36, a private SAR satellite believed to support Ukraine’s war effort, prompting concerns about hostile actions in orbit. The incident, repeated in October 2026 at a distance of 500 m, has accelerated Western interest in satellite defense. U.K. startup Shield Space is developing swarms of up to 100 attritable cubesats—microwave‑sized, low‑cost spacecraft launched from a car‑sized carrier—that can autonomously intercept threats using lasers, microwaves or kinetic techniques, even without ground control. Shield plans to demonstrate rendezvous and proximity operations with an 8U cubesat and a 3U target on SpaceX’s Transporter‑21 mission in Q4 2027, aiming for progressively higher autonomy. The project, dubbed Project Broadsword, seeks to deliver a protect‑and‑defend capability for under £100 million, leveraging off‑the‑shelf components to overcome size, weight and power constraints.
💡 Why It Matters
- · Demonstrating autonomous swarm defense could redefine how nations safeguard critical space assets, shifting the balance from passive shielding to active, low‑cost interception.