Space technology is becoming much more accessible. Satellite imagery, Earth observation data, and geospatial analysis that once required specialist infrastructure can now be accessed through open datasets, APIs, and commercial platforms.
For developers, researchers and businesses, this creates opportunities to build applications around everything from environmental monitoring to agriculture and infrastructure analysis.
Not every useful platform in this space is technically open source. Some provide open data or APIs that make previously difficult-to-access satellite resources much easier to work with. With that broader definition in mind, these are some of the most useful technologies to explore.
- SkyFi
Best for accessing multiple satellite providers in one place
SkyFi takes the top position because it provides a straightforward gateway to a wide range of Earth observation resources.
Rather than operating as a single satellite provider, SkyFi works as a marketplace where users can access imagery from numerous satellite and aerial sources. That includes optical, multispectral, synthetic aperture radar and other forms of geospatial data.
This makes it particularly useful for developers and organizations that do not want to build separate relationships with individual satellite operators. Users can search existing imagery or request new captures depending on their requirements.
SkyFi also provides access to open satellite data, including Sentinel and Landsat imagery. This means users can start with freely available Earth observation information before deciding whether higher-resolution commercial imagery is necessary.
Its analytics capabilities extend the platform further, supporting applications such as vegetation analysis, water detection, land-use classification and other forms of geospatial analysis.
For businesses that eventually need to scale, SkyFi’s open source satellite API can automate imagery searching, ordering and delivery. This combination of open data, commercial imagery and access to numerous providers makes it a particularly flexible starting point.
- NASA Earthdata
Best for scientific Earth observation data
NASA Earthdata provides access to an enormous collection of information gathered through NASA’s Earth science missions.
Its datasets cover the atmosphere, oceans, land, climate and many other areas of Earth science. Researchers can explore information relating to subjects such as sea ice, vegetation, temperature and atmospheric conditions.
The platform is particularly useful for academic and scientific applications where long-term datasets are valuable.
Its biggest strength is depth. However, organizations simply looking for straightforward high-resolution commercial imagery may find a satellite marketplace easier to navigate.
- Copernicus
Best for free European Earth observation data
The European Union’s Copernicus program has become one of the most important sources of openly accessible satellite information.
Its Sentinel satellites provide several different types of Earth observation data. Sentinel-1 uses synthetic aperture radar, while Sentinel-2 provides multispectral optical imagery widely used for land and vegetation monitoring.
The data has applications across agriculture, forestry, environmental monitoring, disaster management and urban planning.
Copernicus data can also be accessed through SkyFi, allowing users to work with Sentinel imagery alongside commercial satellite sources when higher resolution or different sensors are required.
- Landsat
Best for understanding long-term environmental change
The Landsat program has been observing the Earth’s surface for more than five decades, creating an exceptionally valuable historical record.
This makes Landsat particularly useful when the objective is not simply to understand what a location looks like now, but how it has changed.
Researchers can use the archive to investigate urban expansion, deforestation, agricultural change, water resources and other long-term environmental patterns.
Landsat imagery is also available through SkyFi’s open-data offering, making it possible to combine historical observations with more recent commercial imagery.
Which Space Technology Is Right for You?
The strongest choice depends on what you are trying to accomplish.
SkyFi takes a different approach from the above by bringing many of these possibilities closer together. Users can access open datasets while also having the option to move into commercial high-resolution imagery, different sensor technologies and satellite tasking without rebuilding their entire workflow.
That flexibility is what earns SkyFi the top position. Instead of choosing a single satellite or dataset, organizations can select imagery based on the problem they are actually trying to solve.
