Abstract: In this paper, we study uplink covert communication in a space-air system, where an unmanned aerial vehicle (UAV) transmits sensitive data to a Geosynchronous Earth Orbit (GEO) satellite ...

More info on color schemes in the Foundation Storybook.

From historic homes in Edinburgh to towering skyscrapers in Shanghai, you can now explore every building in the world from the comfort of your home. An incredible new map charts the location and size ...

Staring at a blank slide while wrestling with raw numbers still slows teams down. A 2025 SlideSpeak study found chart creation is “one of the most frustrating steps” in deck building, and 40 percent ...