Astrolight

Astrolight’s HERMES optical ground station (OGS) in Kangerlussuaq, Greenland, funded by ESA under its ScyLight programme, is the world’s northernmost station of its kind. Using laser communication technology, HERMES downloads data from low Earth orbit (LEO) satellites at far higher data rates and lower cost than traditional radio frequency (RF) ground stations. The location was chosen deliberately: most Earth observation satellites fly polar or sun-synchronous orbits that pass over the Arctic on nearly every revolution, giving the station frequent contact opportunities.

Astrolight selected Baader Planetarium for its extensive experience with observatory domes, its proven track record in similar Arctic environments, and the reliability of its products. We value the Baader team’s professionalism and continued support.
Astrolight Team

Note from Baader Planetarium

In September 2026, our team installed a 3.2 m Baader Advanced Slit Dome on site in Kangerlussuaq, Greenland, as part of a new Optical Ground Station for satellite laser communications. We manufactured and supplied the dome along with selected observatory hardware for integration by Astrolight, which is developing the ESA-funded station in partnership with ESA’s Directorate of Connectivity and Secure Communications under the ScyLight program.

Designed for the demanding Arctic environment, the dome incorporates our Baader Polar Dome configuration, with extreme-cold requirements integrated into its mechanical and electronic systems from the outset. Dedicated weather monitoring and humidity control provide additional protection for the instrumentation.

The Kangerlussuaq project demonstrates how we combine more than two decades of experience in polar regions with in-house dome manufacturing and on-site installation expertise to support modern optical ground stations.

More Information: ESA-funded Optical Ground Station for fast and secure laser satellite communications begins construction in Greenland