May of 2026 marks the 150th anniversary of the outstanding biologist and geo­grapher, theorist and historian of science, Academician, Moscow University graduate Leo S. Berg (1876–1950), who became famous during his life as the greatest ichthyologist in our country. He published numerous papers with descriptions of single fish species, as well as general monographs on the ichthyofauna of our country and its regions. He also focused on fishing, domestic aquaculture and zoogeographical zoning by ichthyofauna. The article discusses L.S. Berg’s research on palaeontology, which began during his expeditions to the Aral Sea in 1899–1906. He studied the Meso-Cenozoic deposits of the Aral coastline and their fossil fauna. Since the 1930s, Leo Berg continued his palaeoichthyological research, studying in detail the Late Paleozoic, Mesozoic and Cenozoic actinopterygian and other fishes. He described a number of fossil taxa of ichthyofauna and critically revised the system of fossil agnathans and fishes. The article provides brief biographical information of L.S. Berg, one of the classics of world ichthyology in the 20th century.

The paper provides a brief analysis of the process of continuous self-organization (evolution) of living matter in the flow of Primary energy. Particular attention is paid to humans (Homo sapiens), who have taken possession of special methods of energy generation, not characteristic of any other species, namely, the transformation of the continuous flow of Primary energy. Energy generation and “scientific thought” have allowed humanity to become, according to V.I. Vernadsky, a “geological force”, to involve significant resources of the planet in the process of its own continuous self-organization and socialization of individuals. The scientific formalization of the processes used to generate energy significantly has accelerated the development of society and has actually become a prerequisite for the scientific and technological revolution. It is shown that they were Russian and, to a greater extent, Soviet scientists who have made a decisive contribution to the fundamental scientific foundations of energy generation, which determines the modern process of self-organization of mankind and people socialization. Reducing the overall efficiency of energy resources below a certain threshold is a dangerous and intractable challenge for the industrial world economies and civilization as a whole, causing conflict situations. An alternative to the apocalyptic scenario of human development, the concept of distributed energy generation based on self-regulation of energy consumption by a single individual is considered. Distributed energy generation, according to the authors, could determine novel socialization phenomena and initiate, according to V.I. Vernadsky’s teaching, the transition of the biosphere into the noösphere.

The article presents a comparative analysis of the development of the system of protected natural areas (PNA) in China and our country. PNA in China began to form in the middle of the 20th century following the example of the USSR, that is, with the creation of nature reserves with a strict protection regime. In the late 1960s, China saw a suspension in the development of the PNA system and even its partial reorganization, which was also typical for our country a decade earlier. Since the end of the 20th century and to the present, both in Russia and China, the PNA system has been actively developing – the number of protected areas is increasing and they are being restructured in accordance with the categories of the International Union for Conservation of Nature (IUCN).

The astronomical theory of climate changes (oscillations), created more than 100 years ago by the Serbian mathematician Milutin Milanković, in its current form does not explain global fluctuations of the natural environment in the Late Pleistocene, and therefore requires further refinement and development. And this theory has been modernized. Our revision is based on the results of calculations of the Earth’s insolation, performed with a high spatiotemporal resolution. The irradiation of the entire Northern Hemisphere was taken as the basis for determining the causes of the glaciations in Late Pleistocene. Variations in incoming solar radiation, calculated within the astronomical theory of climate, were supplemented by calculations of variations in the characteristics of radiative heat transfer. Based on the improved astronomical theory, the causes of global climate changes in the Late Pleistocene were found. The effect of dividing seasonal irradiation by phases of annual irradiation of the hemispheres was determined, and on this basis 7 warm and 9 cold solar epochs are distinguished in the solar climate of the Late Pleistocene. It has been determined that the glacial epochs in the Late Pleistocene of Northern Eurasia are associated with periods of positive average anomaly of winter meridional heat and moisture transfer and negative average anomaly of summer irradiation intensity in the Northern Hemisphere. Also, positive average anomalies of radiative heat transfer from the summer Southern Hemisphere to the winter Northern Hemisphere, as well as negative average anomalies of insolation seasonality in the Northern Hemisphere, correspond to glacial periods in the Late Pleistocene.

Interglacial epochs are associated with periods of positive average anomalies of summer radiation intensity and negative average anomalies of winter meridional transfer, and interhemispheric transfer of heat and moisture from the summer Southern Hemisphere to the winter Northern Hemisphere. Also, interglacial periods in the Late Pleistocene correspond to negative average anomalies of radiative heat transfer from the summer Southern Hemisphere to the winter Northern Hemisphere, as well as positive average anomalies of insolation seasonality in the Northern Hemisphere. The difference in the intensity of summer irradiation of warm and cold climate epochs in 100-thousand-year cycles averages 4.91 W/m2 (or 1.151% of the average Late Pleistocene value of summer irradiation intensity for the Northern Hemisphere). Therefore, the change of paleoclimatic epochs is associated mainly with the dynamics of the characteristics of summer radiation, and with the winter transfer of radiative heat and moisture determined by astronomical factors.

May of 2025 marks the 180th anniversary of the Siberian researcher, geologist and geo­grapher Jan Stanislaw Franciszek Czerski (1845–1892). However, he worked not only in the field of geology and geography. An important part in Czerski’s researches was works on paleontology and zoology; he is also known as an archaeologist. In 1871–1879, Czerski worked at the museum of the Siberian (Eastern Siberian) Branch of the Imperial Russian Geographical Society in Irkutsk. He studied, catalogued and significantly expanded the zoological and paleontological collections of the museum. The article provides brief information from Jan Czerski’s life. His main works on the study of modern and quaternary Siberian mammals, which laid the foundation for further research in this area, are analyzed. Czerski’s paleontological research ranks him among the outstanding palaeontologists of the second half of the 19th century.

During ten field seasons, in the format of the scientific and educational expedition “Flotilla of Floating Universities”, whose concept is based on the synthesis of science and art, many researches and educational, volunteer and publishing projects and events have been implemented in the Volga region, the Caspian region, the Don region and the Urals. The research areas of the tenth field season in 2024 (Samara–Saratov Volga region) focused on: a) stratigraphic and astrochronological analysis of sections of Upper Cretaceous and Paleogene sediments, b) studying the role of living matter in the evolution of geoecosystems with special attention to biosimilar bodies (paleosoils, hardgrounds), c) analyzing the distribution of cosmic matter in natural environments in the zone of the “Saratov meteor shower” in 1918, and d) the history of the Great academic expeditions in the 18th century (the Volga routes of I.I. Lepekhin, P.S. Pallas, and I.P. Falk). The key scientific and educational projects were a field meeting of the RAS Commission for the Study of the Heritage of Outstanding Scientists (V.I. Vernadsky section) and a field session of the Moscow Society of Naturalists (MOIP) on the Volsk–Saratov section of the expedition’s main route.

The article traces milestones of the formation and development of sciadography in the Botanical Garden of Moscow University in the 19–20th centuries in the aspect of the history of science. In accordance with the logic of the development of scientific know­ledge, taxonomic ideas about the Umbelliferae were transformed as research methods improved. Studying of the Umbelliferae became a specialty of the Botanical Garden of Moscow University. The evolution of approaches to the construction of the system of this family of angiosperms is considered: from G.F. Hoffmann’s artificial system (early 19th century), based on comparative morphological data, to B.M. Kozo-Polyansky’s natural system (early 20th century), based on the principles of evolutionary morphology, and further, to phylogenetic systematics based on modern research methods and quantitative methods of data processing. This approach was developed by V.N. Tikhomirov and M.G. Pimenov, their colleagues and students (since the 1970s). January 2025 marks the 265th anniversary of the birth of G.F. Hoffmann (1760–1826) and the 135th anniversary of the birth of B.M. Kozo-Polyansky (1890–1957).

The gallery of artistic portraits of outstanding Russian and foreign naturalists, consisting of sculptures and paintings, occupies an important place in the exposition of the Earth Science Museum at Moscow State University. The 270th anniversary of the Moscow State University named after Lomonosov and 75th anniversary of its Earth Science Museum is an occasion to turn to the activities of scientists directly related to Moscow University. The portraits of paleontologists of the 19th – first half of the 20th century, which were at the beginning of the science of fossil organisms at Moscow University, are shown in the museum halls. They have contributed to the development of this science, as well as museology at the university, and laid the foundation for modern research and teaching paleontological courses. Among them are the learners of Johann Gotthelf Fischer von Waldheim (1771–1853) – Charles Roulier (1814–1858) and Grigory E. Shchurovsky (1803–1884), Vladimir O. Kovalevsky (1842–1883), Aleksei Petrovich (1854–1929) and Maria Vasilievna (1854–1938) Pavlovs, and Aleksei Alekseevich Borisyak (1872–1944). Brief biographical information of the scientists is provided. Their contribution to the development and organization of paleontological research at Moscow University is shown.

The preservation and in situ museumification of archaeological objects of stratigraphic sections of cultural layer soils, whose value depends on the integrity and intactness, is a complex and underdeveloped problem. This is due to some specific properties of these soils, such as the heterogeneity of soil composition both vertically and horizontally; the diversity of inclusions, the uneven compressibility of the strata, the ability to self-compact from their weight, changes in hydrogeological conditions, soil soaking and the decomposition of organic inclusions. As a result, these soils are the most unfavorable in artificial stabilization. In the study, a wide range of soils of the cultural layer from various places with stabilization plans were examined. Our analysis of the deposits made it possible to separate these soils by geochemical features which have the highest impact on the intensity of the chemical solution’s interaction processes with the mineral component of the soil.
This chemical solution is in a family of silicate compositions with surfactants of the amide class. These organic liquid glass hardeners activate the skeletal part of the soil and provide the complete mobilization of the main cementing substance (silica gel). Pilot tests of various modifications of organo-silicate solutions were carried out at the sites of Chersonesos (Sevastopol), Tanais (Rostov region), Moscow, etc. The soils ranged from sandy to loamy with various inclusions (building stone, ceramics, bones, fish scales, shells, ash, soot, plant roots, etc.). Soil stabilization was carried out by injecting chemical solutions of various densities with the use of vertical and horizontal injections. An important finding of the work was that forming a new soil mass with improved properties was determined by the composition, properties of the soil and injection solutions, the distance from the injector and the depth of the stabilized area.
For the first time in Russia, at the center of Moscow, it was possible to preserve the soil mass in situ of the cultural layer of the 16–17^th centuries and exhibit it for 32 years to visitors in the underground archaeological museum.