Scientists predict 2026 hottest year on record as climate talks begin

A surprising discovery suggests that some early signs of Alzheimer’s disease may begin outside the brain. Using miniature laboratory systems made from human cells, scientists found that genetic mutations associated with inherited Alzheimer’s can disrupt nerve-to-muscle connections without any involvement from the brain or spinal cord. This could help explain why some patients experience changes in balance, walking, and coordination long before memory problems develop.

Scientists have uncovered a hidden gut-to-brain dopamine pathway that helps explain why bitter coffee and other initially unpleasant flavors can become favorites over time. The discovery reveals how the brain learns to crave certain foods and could eventually lead to new ways of reshaping eating habits and food preferences.

Written by Tasha Coelho, Mastcam-Z Student Collaborator at Arizona State University Nov. 1, 2026 Perseverance’s most recent abrasion “Pumbe” bears a striking resemblance to an earlier abrasion, “Badger Peak.” That’s no coincidence. As previously reported, that rock had a hardness too high to core. However, the team felt strongly that it was worth the effort […]

Read this release in English here . La NASA busca a los exploradores que ayudarán a escribir el próximo capítulo de los vuelos espaciales tripulados. Ya está abierto el plazo de inscripción para la próxima promoción de astronautas de la agencia, que se incorporarán a la NASA en un momento en el que Estados Unidos regresa a la Luna, construye la Base Lunar y sienta las bases para las primeras misiones tripuladas a Marte.