Some problems are invisible until someone looks.
Caelus uses satellite intelligence to find humanitarian and infrastructure gaps worldwide, then gives that data, and the opportunity to build real solutions, directly to the people and organizations already doing the work.
Measurement is not the
bottleneck.
The instruments are already flying. They already record. The gap Caelus works on sits entirely between what gets measured and what anyone does about it.
no gauge here
Illustrative. The upper track is Sentinel-1’s published revisit cadence, not a measurement we are claiming. The lower track is drawn empty to show the shape of the gap. This strip will be replaced with a real detection, its real imagery, and its real counts when the first brief publishes.
Tell us who you are.
I work in one of these regions
Community organization, agency, or practitioner. We will build you a brief on your area, free.
I want to build something
Student, engineer, or researcher. Claim an open brief and build a response.
I know a place worth looking at
Anyone. Tell us where, and what you think is being missed.
I work in satellite or geospatial research
SAR, remote sensing, or Earth observation. Or you have your own idea for the mission.
Most programs wait for someone to bring them a problem.
Caelus finds the problem first, from orbit, from public records, from the datasets nobody is reading, and brings it to the people already positioned to solve it.
Wait for a proposal
Scan continuously for gaps
Fund the idea that shows up
Find the gap nobody has flagged
Hope it reaches a real need
Start from a measured, located need
Solution looking for a problem
Problem delivered to those already working
Detect. Document. Deliver.
Three steps, in order. Each one exists because the step before it produces something nobody can act on yet.
Detect
We ingest public satellite and government data to find measurable gaps between what instruments can see and what anyone is acting on.
Groundwater loss. Flood exposure with no gauge. Smoke over farmland. Broadband and health-access deserts.
Document
Every detection becomes a brief: what the data shows, where, who it affects, what the uncertainty is, and what a response could look like.
Written to be usable by someone doing the work, not a pitch deck.
Deliver
We bring briefs directly to the organizations, researchers, and community groups already embedded in that region.
And we open them to anyone who wants to build a response.
From speckle
to structure.
Synthetic aperture radar is a coherent imaging system, so every acquisition arrives carrying multiplicative speckle that buries the structures underneath it. Caelus applies multi-temporal despeckling and edge-preserving filters across Sentinel-1 backscatter, then segments what survives: building footprints, road networks, standing water.
Everything downstream reads that output, not the raw scene.
- Multi-temporal despeckling
- Edge-preserving filtering
- Backscatter segmentation
SAR INPUTCAELUS OUTPUT
Delos
ONE TOOL. NOT A SUITE.
Delos is the tool Caelus builds: a single instrument that turns public satellite and sensor data into a readable picture of where communities are underserved.
It layers environmental, infrastructure, and socioeconomic signals into one view, scores relative need, and surfaces the places where measurement and response have come apart. Six regional views are built into it, each tuned to the conditions of that place.
Delos is in active development. What is live today is the map, the regional views, and the first set of briefs.
- SENTINEL-1
- NASA GRACE-FO
- NASA FIRMS
- USGS
- EPA
- FEMA
- US CENSUS
- CDC
- FCC
Six focus areas.
Each one is a purpose-built view inside Delos, tuned to the specific conditions and data availability of that place. Not separate tools: the same instrument, pointed at six different problems.
Navajo Nation
36.1°N 109.5°WWater access and infrastructure monitoring gaps across a service area larger than West Virginia
Texas Colonias
26.2°N 98.2°WUnincorporated settlements with flood exposure and minimal official gauging
Puerto Rico
18.2°N 66.5°WGrid fragility and post-storm recovery blind spots
Mississippi Delta
33.4°N 90.7°WFlood risk, subsidence, and health-access deserts
Appalachia
37.6°N 82.5°WWater quality, broadband gaps, and legacy extraction impacts
India (agricultural belts)
30.5°N 75.5°EGroundwater depletion and crop-stress early warning
Caelus is not a closed program.
The briefs we produce are meant to be picked up. If you are a student, researcher, engineer, or organization who wants to build a response to something we have found, or if you know a place that deserves a closer look, there is a way in.
No application to read, no equity taken, no ownership claimed over what you build.