In the early 21st century, modern ground-based very-high-energy gamma-ray observatories have ushered in a new era of astronomy. The number of known gamma-ray sources increased from the handful detected prior to 2002 to more than 150 a decade later. Using three types of telescopes - small, medium, and large-sized - the CTA array will observe many new objects and phenomena. One of these instruments is being designed by Polish scientists and engineers.

A debate is currently raging on the role played by liberalism in Poland's transformation. Do you think that in 1989 it was inevitable that we would follow the road of neoliberalism, as set out by Friedrich Hayek?

Gender inequality is not a unique trait of our species. It turns out to be quite a widespread phenomenon in the animal kingdom, and can be attributed to differing amounts of resources invested in reproduction. What kinds of strategies are adopted by each side of this conflict? And whose interests will ultimately turn out to be less important?

Not being able to carry out our plans frequently leads to frustration. Can a similar phenomenon occur in physics? It turns out that it can.

The discipline of genocide studies is highly complex, touching on almost all aspects of social life. As such, it faces numerous barriers and demands an interdisciplinary approach.

We discuss climate change and its potential outcomes for Poland and the world with the climatologist Prof. Mirosław Miętus - coordinator and member of projects studying global climate change.

Transplants can save lives, but only if the donor tissue is compatible with the recipient's body. Understanding how the body identifies and rejects foreign tissue is crucial for success. The molecules responsible for this are known as major histocompatibility complex (MHC) proteins.

On the one hand, shale gas extraction has been portrayed as the future of Poland's energy sector, and on the other, as an undertaking potentially harmful to the natural environment that might spark public protests. Why are opinions on this issue so widely disparate?

When one observes an ant colony, it probably seems like an efficient and harmonious community devoid of quarrels and conflicts. Nothing could be further from the truth. The world of ants, it turns out, is full of animosities. For example, there is friction between the queen and the workers over the gender of the offspring, or among workers themselves about laying unfertilized eggs. There are also other hostilities, for instance, between a colony's rightful inhabitants and any unwanted guests.

We discuss inequalities, social justice and the "two Polands" with Dr. Ryszard Sharfenberg. He studies problems of social exclusion, poverty, and social assistance, and he has written publications on social policy and the welfare state.

The debate about gender issues that is currently sweeping across Poland has served to illustrate how confusing the term "gender" is in our country, as well as revealing the vast resistance among Polish society to initiatives aiming to eliminate discrimination and improve equality between men and women.

Quantum theory was discovered in 1925 independently by Werner Heisenberg and Erwin Schródlnger, The discovery was the culmination of 25 years of intensive research. Today, its interpretation remains as controversial as it is inspirational.

Are cancer cells in conflict with healthy cells? Is cancer inherited? What new therapies are currently being developed? We talk to Prof. Janusz A. Siedlecki, who has been studying the mechanisms of carcinogenesis for over 40 years, and has focused on molecular diagnostics for the last two decades.