Microorganisms, spiders, barley seedlings and new materials have been sent to the stratosphere by scientists from the University of Silesia, who want to check how the conditions in the stratosphere will affect them. The initiative was awarded during the Global Space Balloon Challenge 2019.
The smallest structures of a living organism can be watched "at work". Researchers have obtained sharp images of working and communicating cells. The innovative imaging methods have been developed by Prof. Maciej Wojtkowski`s team from the Institute of Physical Chemistry of the Polish Academy of Sciences.
Strong UV radiation penetrated the atmosphere of the young Earth that did not contain oxygen, and thus - ozone. In such conditions, the first biomolecules formed: the basic building blocks of life. They still exist, forming DNA and RNA. Dr. Rafał Szabla from the Institute of Physics of the Polish Academy of Sciences in Warsaw conducts research on the influence of light on the chemistry that could produce biomolecules.
Researchers, including a team at the Jagiellonian University, have managed to build a nanometer-sized protein cage, in which fragments of proteins are coordinated with gold ions. Researchers obtained a "mathematically impossible" solid - an almost regular Archimedean polyhedron. The solution published in Nature can be used, for example, to deliver drugs to cells.
Conflicts between humans and large species of animals such as elk or wolf do happen, but they are not dramatic and we know how to mitigate them, says Prof. Rafał Kowalczyk, director of the Mammal Research Institute of the Polish Academy of Sciences in Białowieża. He adds that the wolf has important functions in the ecosystem and is an ally of man.