Inside Europe's first laser satellite link in Greenland

The European Space Agency (ESA) is advancing Europe’s polar satellite communication capabilities by commissioning Lithuanian startup Astrolight to build the continent’s first optical ground station (OGS) in Greenland. This initiative responds to the growing demand for higher data transfer rates from Earth-observation satellites and the vulnerabilities of radio frequency (RF) systems, especially after suspected GPS spoofing incidents near Svalbard in 2025. Unlike RF signals, laser communication uses tightly focused beams that are difficult to jam or intercept, enabling data rates up to 10 gigabits per second—significantly faster than traditional RF links. Greenland’s Kangerlussuaq location offers strategic advantages, including frequent satellite passes, geographic diversification from Svalbard, and clear Arctic-desert skies conducive to stable laser communication. Astrolight’s OGS will serve a broad range of customers, including space agencies, governments, and commercial satellite operators, facilitating faster and more reliable downlinking of large volumes of data, particularly from optical