Europe is testing laser-based satellite communications through a new mountaintop ground station in Greece, aiming to deliver faster, more secure links than traditional radio systems as bandwidth demand grows. The Register reports: Lithuanian space and defense biz Astrolight says that it has commissioned a new optical ground station in Greece that will support ESA-backed CubeSat missions testing laser-based communications between satellites and Earth. The Holomondas Optical Ground Station was built through the PeakSat project, led by the Aristotle University of Thessaloniki with backing from the European Space Agency and Greece's Ministry of Digital Governance. Its job is to receive data from satellites via infrared laser links rather than the radio systems that space operators have relied on for decades. PeakSat and ERMIS-3, two Greek CubeSats launched in March under ESA's wider Greek IOD/IOV mission program, both carry Astrolight's ATLAS-1 optical communication terminal. Astrolight also built the ground segment, giving the project a fully integrated end-to-end optical communications setup. [...] The company says the station uses an 808-nanometer laser beacon and an optical C-band receiver capable of receiving data at up to 2.5 Gbps. Unlike traditional RF systems, optical links use tightly focused infrared beams that are harder to intercept or jam while also supporting significantly higher throughput.

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BrianFagioli writes: Artificial intelligence has now run directly on a satellite in orbit. A spacecraft about 500km above Earth captured an image of an airport and then immediately ran an onboard AI model to detect airplanes in the photo. Instead of acting like a simple camera in space that sends raw data back to Earth for later analysis, the satellite performed the computation itself while still in orbit. The system used an NVIDIA Jetson Orin module to run the object detection model moments after the image was taken. Traditionally, Earth observation satellites capture images and transmit large datasets to ground stations where computers process them hours later. Running AI directly on the satellite could reduce that delay dramatically, allowing spacecraft to analyze events like disasters, infrastructure changes, or aircraft activity almost immediately. "This success is a glimpse into the future of what we call Planetary Intelligence at scale," said Kiruthika Devaraj, VP of Avionics & Spacecraft Technology. "By running AI at the edge on the NVIDIA Jetson platform, we can help reduce the time between 'seeing' a change on Earth and a customer 'acting' on it, while simultaneously minimizing downlink latency and cost. This shift toward integrated AI at the edge is a technological leap that can help differentiate solutions like Planet's Global Monitoring Service (GMS), providing valuable insights for our customers and enabling rapid response times when it matters most."

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