An instrument dedicated to our invisible shield LEXI (Lunar Environment Heliospheric By repelling charged particles projected by the Sun, the magnetosphere acts as an invisible guardian, protecting our satellites and our infrastructure from electromagnetic disturbances.

Only 7% of male New Caledonian humpback whales have fathered offspring in 25 years, according to a recent study. male humpback whales from New Caledonia who have fathered a calf in recent years would be insignificant. Indeed, this group of researchers photographed whales between 1995 and 2019, or around 25 years, and also carried out … Read more

[Un article de The Conversation écrit par Enrico Monti – Professeur associé d’anglais et de traductologie, Université de Haute-Alsace (UHA)] In a well-stocked library or bookstore, you might find up to seven different translations of the Metamorphoses or The Great Gatsby. We are not talking here about different editions, but rather about different texts, different words. … Read more

In the United States, Utah is known for its mountains, ski resorts and powder snow. Some even say the state has the best snow in the world. In any case, it certainly experiences periods of heavy snowfall, increasing the risk of avalanches. The start of 2025 was marked by a violent snowstorm in Utah. A … Read more

Bioluminescent fungi have fascinated people since Aristotle first observed them more than 2,000 years ago, describing them as a “cold fire” emanating from decaying wood. Yet the mystery surrounding the phenomenon has persisted throughout the The mechanisms behind this ability of certain organisms to produce light are only beginning to be well understood. Although associated … Read more

[Un article The Conversation écrit par John Keeley – Écologiste chercheur, USGS ; professeur adjoint, Université de Californie, Los Angeles] What causes Santa Ana winds? Santa Ana winds are dry, powerful winds that blow down from the mountains toward the coast in Southern California. On average, ten episodes of Santa Ana winds occur each year, usually … Read more

In the meanders of the marshes and wetlands, certain inhabitants are so discreet that they become almost legendary. This is the case of the great bittern, a rare and elusive bird, often nicknamed the “ghost of the marshes” for its exceptional ability to blend in with its environment. But sometimes, chance intervenes and offers a … Read more

For decades, science has revealed the lasting impact of pollution on human health, even in unexpected historical contexts. A recent study, led by researchers from the Desert Research Institute (United States) and the University of Oxford, highlights a link between intensive mining under the Roman Empire and atmospheric lead pollution in an unprecedented scale. Proceedings … Read more

[Un article de The Conversation écrit par Pascal Froissart – Professeur des universités en Sciences de l’information et de la communication, directeur du CELSA, Sorbonne Université]

On December 21, 2024, the US Navy received its twelfth nuclear attack submarine of the year. The USS Iowa, codenamed SSN 797, is a Virginia-class vessel that will soon be commissioned for the next 30 years. A giant of the deep Newly delivered and soon to be put into service by the US Navy, the … Read more