En Belgique francophone, le « cordon sanitaire » a été créé il y a une trentaine d'années.

Samples from the near-Earth asteroid Bennu found to contain molecules and compounds vital to the origin of life

Burst from M-dwarf star could be powerful enough to strip the atmosphere of any planets that orbit it, with implications for the search for extraterrestrial life

YouTube video by ESO Chasing Starlight

From Earth and the other planets in our solar system, to supermassive black holes and the distant galaxies that contain them, explore NASA science and imagery through our library of e-books.

A rigid ice shell over a shrinking interior makes for pressures low enough to boil.

This paper presents a series of hands-on experiments designed to teach principles of carbon dioxide removal through chemical weathering in middle and high school chemistry classes. Chemical weathering is demonstrated by the reaction of carbon dioxide dissolved in water with basalt, forming bicarbonate. The experiments, which utilize simple materials such as PET bottles, are safe and feasible for classroom settings. Students are introduced to key concepts such as the carbon dioxide solubility in water and the chemical processes that trap carbon dioxide. The experimental design includes continuous monitoring of dissolved carbon dioxide levels using membrane-based carbon dioxide sensors and pH changes to visualize the progression of bicarbonate formation. These activities provide students with practical experience in carbon dioxide removal methods, mirroring real-world geological processes, and enhance their understanding of their part in the carbon cycle. In addition, the experiments also provide insight into fundamental processes of carbon capture and storage based on the chemical weathering of basalt. The accessibility of the materials, coupled with the relevance to current global climate discussions, makes this a valuable addition to chemistry education. This approach aims to fill the educational gap on carbon dioxide removal, empowering students to engage in societal discussions on the role of carbon capture and storage in the fight against climate change.

Écoutez l’extrait de l’émission Les années lumière : Juno, la grande exploratrice de Jupiter

Triple-fermented Belgian beers have the longest-lasting foam; single-fermented lagers have the shortest.

The European Space Agency’s Jupiter Icy Moons Explorer (Juice) is on track for its gravity-assist flyby at Venus on 31 August, following the successful resolution of a spacecraft communication anomaly...

“This is going to really help us understand how to predict space weather in the magnetosphere.”…