Reaction wheels
Spinning wheels that turn satellites without using fuel
Blue Canyon Technologies
Colorado builder of small satellite buses and the parts that point them, such as reaction wheels and star trackers. Owned by RTX's Raytheon, it says 96 of its spacecraft have launched.
Products, by altitude
On the ground · 0 km · Earth’s surface
In service ![]()
In development ![]()
Saturn-400
Satellite body carrying payloads up to about 600 kg
Milestones
- Apr 2026 Invested over $1 million to raise reaction wheel output from 650 to 2,400 a year; it has built 3,500 flight wheels since 2014. Company statement1
- Aug 2025 Introduced the Saturn-400 bus for payloads up to 600 kg, its first with an optional control moment gyroscope. Company statement2
- Jun 2024 Selected by NASA to build two 12U CubeSat buses and run mission operations for the PolSIR ice-cloud climate mission. Company statement3