Les sceptiques avancent plusieurs explications : libération massive de neurotransmetteurs, manque d’oxygène, constructions mémorielles a posteriori. Cependant, aucune hypothèse ne permet aujourd’hui d’expliquer de manière satisfaisante l’ensemble des cas documentés, en particulier lorsque l’activité cérébrale est quasi nulle. Le témoignage d’Eben Alexander ne constitue pas une preuve scientifique définitive d’une vie après la mort. Il représente toutefois un élément troublant, venant d’un spécialiste du cerveau lui-même, qui reconnaît les limites actuelles de la science.
Une question toujours ouverte
Aujourd’hui encore, Eben Alexander affirme ne pas chercher à imposer une croyance, mais à ouvrir un débat. Son expérience soulève une interrogation essentielle : la conscience humaine est-elle strictement limitée au fonctionnement biologique du cerveau, ou existe-t-il une dimension encore inconnue ? Entre science, médecine et philosophie, la question reste ouverte. Mais une chose est certaine : lorsqu’un neurochirurgien remet en cause ses propres certitudes après avoir frôlé la mort, le sujet mérite d’être examiné avec sérieux.
CommentEconomiser
2026 June 22
Explanation: Is this what will become of our Sun? Quite possibly. The first hint of our Sun's future was discovered inadvertently in 1764. At that time, Charles Messier was compiling a list of diffuse objects not to be confused with comets. The 27th object on Messier's list, now known as M27 or the Dumbbell Nebula, is a planetary nebula, one of the brightest planetary nebulas on the sky and visible with binoculars toward the constellation of the Fox (Vulpecula). It takes light about 1000 years to reach us from M27, featured here in colors enhanced by red for hydrogen and blue for oxygen. We now know that in about 6 billion years, our Sun will shed its outer gases into a planetary nebula like M27, while its remaining center will become an X-ray hot white dwarf star. Understanding the physics and significance of M27 was well beyond 18th century science, though. Even today, many things remain mysterious about planetary nebulas, including how their intricate shapes are created.
2026 June 20
Explanation: Venus is now appearing on the celestial stage as Earth's brilliant evening star, performing with the Moon, other wandering planets, and bright stars in western skies. For evening sky gazers on June 17, the celestial beacon rose after sunset close by a young, slender, crescent Moon. But from some locations the Moon could be seen to occult or pass in front of Venus. And from a backyard observatory in southern British Columbia, Canada, the lunar occultation was played out in daylight. This stunning telescopic snapshot captured a scene in dramatically cloudy skies, following Venus' hour long disappearance, as the evening star emerged beyond the bright lunar limb.
2026 June 15
Explanation: What's happening to this Sun-crossing rocket? The SpaceX Falcon 9 rocket, visible on the upper left, launched only about one minute before this amazing image was captured. As it rose to low Earth orbit from Cape Canaveral, Florida, USA, in late May, the rocket became supersonic before it crossed the disk of the distant Sun -- from the perspective of the well-placed photographer. The spacecraft's high speed caused bow-shaped compressed-air shockwaves to form across leading surfaces, with at least three visible even outside the Sun's disk because they refract sunlight. The trailing exhaust caused turbulence visible on the lower right. None of this was damaging to the robotic Starlink 10-53 mission, which delivered 29 communications satellites to low Earth orbit as planned. And if that isn't amazing enough - the Sun had spots!
L'Homme de Marree est un géoglyphe situé sur un plateau à Finnis Springs, 60 km à l'ouest de la ville de Marree, dans le centre de l...
