Pierre Celerier

1 week ago | es-us.noticias.yahoo.com | Pierre Celerier

Pierre CELERIER11 de abril de 2025, 10:21 a.m.·3  min de lecturaEl neutrino sigue siendo la única partícula cuya masa se desconoce, pero un proyecto científico internacional acaba de establecer una nueva estimación, dos veces inferior a la anterior. Se sabe todo o casi todo sobre las partículas que componen los átomos, se trate de los protones y neutrones del núcleo, o los electrones que lo orbitan.

1 week ago | sciencealert.com | Pierre Celerier

Scientists trying to discover the elusive mass of neutrinos, tiny "ghost particles" that could solve some of the universe's biggest mysteries, announced a new limit on Thursday for how much they could weigh, halving the previous estimate. Since the existence of neutrinos was proposed nearly a century ago, scientists around the world have struggled to learn much about them – particularly their mass.

2 weeks ago | barrons.com | Pierre Celerier

This is important because the neutrino, as the most abundant particle in the universe, "weaves a thread that connects the infinitely small and the infinitely large," Thierry Lasserre, a physicist at France's Alternative Energies and Atomic Energy Commission, told AFP. Its mass "influences the structures that make up the cosmos," he added. These invisible particles have been washing across the universe since the Big Bang 13.8 billion years ago.

2 weeks ago | es-us.noticias.yahoo.com | Pierre Celerier

Los expertos creían que las poblaciones de cazadores recolectores del Mesolítico se concentraban en las grandes regiones continentales, pero hace 8.500 grupos aislados consiguieron cruzar el Mediterráneo para instalarse en Malta, según un estudio publicado por Nature este miércoles.

3 weeks ago | macaubusiness.com | Pierre Celerier

Europe’s Gaia space telescope was powered down and sent into “retirement” on Thursday after a decade revealing the secrets of the Milky Way, but its observations will fuel discoveries for decades to come. Since launching in 2013, the telescope has been charting the positions, motion and properties of nearly two billion stars to create an unparalleled map of our home galaxy, according to the European Space Agency.