We provide details of the OAUJ-CDK500, the newest optical telescope at the Astronomical Observatory of the Jagiellonian University, and the hardware and software which enables it to work autonomously as a telescope within the Skynet Robotic Telescope Network.

Another photograph by Marcin Rosadziński has been selected by NASA as the Astronomy Picture of the Day (APOD) — marking the fifth time the photographer has been recognized by this prestigious website.

We invite everyone to visit the exhibition of artists participating in the art and research project focused on the phenomenon of galactic jets—the largest known objects in space.

Galaxies can be divided into two main types. Early-type galaxies are compact and consist mainly of old stars, and their radio emission is primarily associated with the activity of the central black hole. In contrast, late-type galaxies have characteristic spiral arms and a large population of young stars, which largely account for their radio emission. Even among early-type galaxies, however, we observe significant differences. Some of them emit radio waves from regions much larger than the galaxy itself, while others emit only from a small region around the center.

Einstein's General Theory of Relativity has predicted the existence of gravitational waves for over a hundred years. However, their nonlinear nature still poses a problem for theorists today. One of the interesting theoretical questions in the theory of gravity is how the presence of gravitational waves affects the shape of spacetime itself.

The European journal Astronomy & Astrophysics has just published an article describing the largest and most detailed radio survey of the sky. Among the researchers (from the Netherlands, Germany, France, Great Britain, Italy, Sweden, Ireland, Latvia, and Bulgaria, among others) involved in this globally unique project are also astronomers from Poland!

In Memory of Konrad Rudnicki in the 100th Anniversary of His Birth, Cracow, 2-3 July 2026