The Jagiellonian Field is a small region of the sky that has played an important role in the study of the large-scale structure of the Universe, becoming a cornerstone of the modern observational cosmology.

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On 15 October 2026, the official inauguration of four Large-Sized Telescopes (LSTs) took place at the Roque de los Muchachos Observatory on the Spanish island of La Palma. The event was attended by 250 scientists and representatives of research institutions from around the world. The new instruments are part of the Cherenkov Telescope Array Observatory (CTAO), currently under construction, which will become the world's largest observatory for gamma-ray astronomy. Our Astronomical Observatory, a member of the Polish CTA Consortium, is also participating in the project.

Almost every galaxy (with exceptions such as tidal dwarf galaxies) harbors a supermassive black hole at its center. Such a central entity affects the dynamics of stars and dust while feeding on galactic matter through accretion processes. Add the galactic magnetic field to the equation, and the result is the co-evolution of supermassive black holes and their host galaxies. However, only about 10% of known galaxies are active galaxies -- those in which the presence of a central engine in the form of a supermassive black hole causes strong non-stellar emission.

Już w ostatni piątek września kolejna możliwość odwiedzenia naszego Obserwatorium.

Astronomers analyzed a sample of galaxies that suddenly “turned on” their radio emissions. In most cases, this means that their supermassive black hole began accreting matter more intensely and triggered a faint jet, but a few objects behave differently. Their galaxies are actively forming stars, the black holes are smaller, infrared flares appear, and the pattern of changes in radio emissions resembles known cases of a star being consumed by a black hole. The authors of this article suggest that some radio transient phenomena may in fact be cases of a star being torn apart and swallowed by a supermassive black hole, and that the WISE W3–radio ratio may prove to be a new way to distinguish them.

Minister of Science and Higher Education in Poland has included seven projects involving researchers from our Observatory on the Polish Research Infrastructure Map. The placement of this strategic infrastructure on the Map is a demonstration of recognition of its research potential.

In the latest evaluation of the quality of scientific activity for the years 2022–2025, Minister of Science and Higher Education awarded Jagiellonian University in Kraków an A+ rating in the field of astronomy.