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Discovery of a rare protist reveals a previously unknown branch of the eukaryotic tree of life

Discovery of a rare protist reveals a previously unknown branch of the eukaryotic tree of life

Published: Wednesday 19.11.2025
A research team from the Faculty of Science, Charles University in Prague has discovered Solarion arienae, an extremely rare and morphologically unique unicellular eukaryote that sheds new light on early eukaryotic evolution. The study, published in Nature, reveals that Solarion represents a newly defined phylum and, together with a few enigmatic protist lineages, forms an entirely new eukaryotic supergroup (kingdom) named Disparia. Remarkably, Solarion preserves ancestral mitochondrial features previously thought to have long disappeared, offering an unprecedented insight into the biology of early eukaryotic cells.
Longer growing seasons will not offset the impacts of summer drought on forest growth

Longer growing seasons will not offset the impacts of summer drought on forest growth

Published: Wednesday 19.11.2025
Climate change is extending the growing season in European forests, but this effect will not be sufficient to offset the negative impacts of increasing drought stress. This is a conclusion of an international research team led by Jan Tumajer from the Department of Physical Geography and Geoecology, Faculty of Science, Charles University, which analyzed more than 2,000 tree-ring width chronologies across Central, Eastern, and Southeastern Europe. The study, recently published in the prestigious journal Nature Communications, shows that while a longer growing season may promote tree growth until mid-century, the negative effects of summer drought will outweigh the benefits of the extended growing season in drier regions after the 2050s.
Café Collaborations Climate Journalism in Czechia and Germany: bringing science-based information into the public debate

Café Collaborations Climate Journalism in Czechia and Germany: bringing science-based information into the public debate

Published: Friday 14.11.2025
We warmly invite you to the next meeting in the Café Collaborations series, this time in close cooperation with the Embassy of the Federal Republic of Germany. Café Collaborations – Climate Journalism in Czechia and Germany: Bringing Science-Based Information into the Public Debate will take place on Thursday, 20 November 2025, from 5:00 PM at Hybernská Campus.Registration required.
Christmas Concert of the Faculty of Science 2025

Christmas Concert of the Faculty of Science 2025

Published: Friday 14.11.2025
We cordially invite you to the Pre-Christmas Concert of the Faculty of Science, which will take place on Tuesday, 9 December 2025 at 6:00 PM in the Great Hall of the Carolinum at Ovocný trh. As in previous years, the evening will also include the award ceremony of the Faculty of Science Memorial Medals and the Dean’s Awards for the best graduates of bachelor’s, master’s, and doctoral programmes, as well as for young researchers. Guests of the Pre-Christmas Concert of the Faculty of Science are invited to a festive reception. Admission is free.

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„Look deep into nature, and then you will understand everything better.“
Albert Einstein 1879 – 1955