Problems don't wait for founders.
Signal finds them from orbit.
Caelus uses satellite imagery and real-world data to detect where technology is needed, then funds student teams to build it.
Our Mission
Every accelerator waits. Caelus finds problems from orbit before anyone arrives.
Signal Platform
Every brief starts with real satellite evidence.
Signal renders each detection as an annotated evidence panel: imagery, change masks, and ground data layered into one view a student team can act on.
Explore SignalWhat a Signal Brief looks like.
Every brief is a fully scoped, evidence-backed problem statement: satellite imagery, affected population, and suggested solution approaches included. Hover to expand.
Environmental · Brief #CAE-0047 · Signal Score: 84
Groundwater Monitoring Gap, Central Valley CA
Affected population: 2.1M
Suggested solution approaches
- 01Low-cost IoT well-depth sensor network for smallholder farms
- 02SAR-derived land subsidence early-warning dashboard for water districts
- 03Groundwater recharge verification platform using GRACE-FO anomaly data
Where Signal looks.
Signal scans six problem categories across every inhabited continent. Each one maps a measurable gap between what satellites can see and what anyone is building.
From orbit to the real world
From orbit to the real world.
Field notes from the teams building on Signal briefs, and research updates from the threads that power the platform.