Ham radio is not just a hobby – it’s a technical and communication challenge that enables amateurs to connect with people around the world. Thanks to advancements in technology, communication is no longer limited to Earth-based partners. It’s now possible to make contact with the International Space Station (ISS), which…
One of the most fascinating and essential tools in astronomical observation is the radio telescope. While optical telescopes observe the universe in visible light, radio telescopes detect radio waves in the electromagnetic spectrum. This allows us to study objects and phenomena that are otherwise invisible. In this article, we explain…
In recent years, increasing attention has been paid to satellites orbiting Earth—not only to their active operations, but also to their defunct yet still “wandering” presence. These objects are often referred to as “zombie satellites.” But what exactly does this term mean, and why do they pose a real threat…
The phenomenon of zombie satellites is not only fascinating from a technical or space research perspective, but also carries historical and political significance. The Cold War, especially under the Eastern European communist regimes, was full of surprising and heroic stories—among them, the little-known case of how the Polish Solidarity movement…