CubeSat Systems · Propulsion · Comms

Small satellites, big leverage on access to space.

CubeSats have gone from university experiments to a serious platform for science, Earth observation and connectivity. This is a working technical resource on the four systems that decide whether a mission succeeds — how they move, how they launch, how much useful payload they carry, and how they get data home — plus a proposed concept for closing the low-Earth-orbit communications blackout using a crowd of consumer Starlink terminals.

1U
10×10×10 cm, ~1.3 kg — the standard CubeSat building block
~$5k
Per-kg rideshare price to Sun-synchronous orbit (SpaceX, 2026)
5–15 min
Typical contact window per ground-station pass
<10 W
Power draw of a modern electrospray CubeSat thruster
The four systems

What this site covers

Each section is written for engineers and industry readers: real specifications, current pricing, and the trade-offs that actually drive mission design today.

Featured

A proposed fix for the blackout gap

The OrbitRelay proposal

Partner with Starlink to carry the data end to end

A constellation operator like Starlink already has terminals in the most remote, ground-station-poor corners of the planet — and already owns every link from terminal to mesh to internet. The project pairs an efficient ion-propulsion bus with a proposal to partner with that operator, so a satellite over the Sahara or the Southern Ocean can hand its data to a nearby terminal and let the partner carry it the rest of the way home.

Read the full concept, the propulsion design and the coverage infographic →