Early Life Traces and Evolution - Astrobiology
Evolution of Life on the early Earth,
from its earliest traces to the origin and diversification of complex life (3.5 to 0.5 billion years ago)
and biosignatures for the search for life beyond Earth
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Défense de thèse
Soutenance de thèse de Tom Feller
La thèse est intitulée : « Living under Far-red light: Adaptation of the photosynthetic machinery of Stanieria cyanosphaera, Vitrella brassicaformis and Euglena gracilis ».
Liège Sart Tilman
Eukaryotes are older than 1.75 billion years
Eukaryotes are older than 1.75 billion years
the oldest eukaryotic fossils known to date
A new study of 1.75 Ga microfossil assemblage from Australia evidences the oldest eukaryotes discovered to date, pushing back their record by more than 100 million years. The fossil cells display cellular complexity and moderate diversity implying a deeper history for the domain Eukarya that includes unicellular and multicellular organisms with cells containing a nucleus and organelles.
Javaux, E. J. (2025). A diverse Palaeoproterozoic microbial ecosystem implies early eukaryogenesis. Philosophical Transactions B, 380(1931), 20240092.
L’espace extra-atmosphérique doit demeurer un patrimoine commun de l’humanité
Carte blanche par le groupe de travail dédié à l’éthique dans le domaine spatial de l’Académie royale de Belgique, dont fait partie Emmanuelle Javaux (publication dans le Daily Science).
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