About three million embryos from in vitro fertilization (IVF) are sleeping today in liquid nitrogen tanks in the United States, according to clinicians. Between abandoned parental projects, separations or medical decisions, these frozen embryos are often left without clear perspective. On July 26, 2025, one of these embryos, frozen since 1994, nevertheless gave birth to … Read more
[Un article de The Conversation écrit par Barbara Fontar – Maîtresse de conférences en sciences de l”éducation, Université Rennes 2 – & Mickaël Le Mentec – Maitre de conférences en sciences de l’éducation et de la formation, Université Rennes 2] Digital social networks, music listening, video games and series are sociability, entertainment and information for young … Read more
Long before the birth of paleontology, ancient civilizations have already met the way for having disappeared for hundreds of millions of years. Among these vestiges frozen in stone, some intrigued to the point of becoming objects of worship or protection. The trilobite, a marine fossil with geometric reliefs, thus crossed the eras to reappear in … Read more
Under a Greek temple buried in Italy, bronze jars discovered in 1954 contained a brownish residue that no one had managed to identify with certainty. This sticky material has been the subject of multiple analyzes that have remained unanswered for 70 years. Thanks to the tools of molecular chemistry, an Anglo-Italian team has just established … Read more
[Article déjà publié le 5 avril 2024] A new in the record of records At the time already, paleontologists claimed that this skull was in very good condition. The Guinness World Records later confirmed this declaration by specifying that it was the “most complete” skull of this type on the planet. He even underlines that … Read more
[Un article de The Conversation écrit par Rob Coyne – Professeur agrégé de physique, Université de Rhode Island] Albert Einstein's theory of general relativity. Published in 1915 and already widely accepted worldwide by physicists and mathematicians, this theory assumed that the universe was static, that is to say immutable and motionless. In short, Einstein thought that … Read more
On a cosmic scale, the universe seems to extend in all directions, carrying galaxies like leaves on a river in flood. However, some of them, including the Milky Way, deviate from this uniform movement to converge towards the same region hidden behind our field of vision. This unexpected behavior led astrophysicists to rethink their way … Read more
The arid landscapes of southern Alberta have been hiding the remains of a revolved world for millions of years, sculpted in the rock by slow and silent forces. Among the eroded hills of the Dinosaur provincial park in Canada, a discreet detail on a slab recently revealed a tangle of fossil fingerprints, engraved in an … Read more
In the immensity of the animal kingdom, there are few species that display a silhouette as singular as that of the human being. Among our physical particularities, the buttocks intrigue by their volume, their form and their role. Neither simple ornament nor clusters of passive fat, this anatomical region alone concentrates the traces of an … Read more
The story dates back between the end of 2020 and early 2021 to believe a report of The New England Journal of Medicine. The latter reports a 47 -year -old American man, living in Michigan, who presented himself at an emergency service with rather mild symptoms. But his condition quickly worsened during his stay in … Read more
