Ciencia en los medios

How a star explosion may have shaped life on Earth.

Un equipo de investigadores descubre el proceso por el cual el cerebro suprime activamente un recuerdo cuando interfiere con otro y lo considera irrelevante. El mecanismo explica algunas de nuestras lagunas diarias y qué es lo que terminamos por recordar de un evento.

In 1962, the ecologist Robert Whitaker set out to categorize the different realms of life on Earth. Some were deserts, others tundra, still others tropical forests. He coined a word for these inhabited environments, one that scientists have used ever since: biomes. The planet’s biomes emerged over hundreds of millions of years. Coastal wetlands sprang…

“AN INORDINATE fondness for beetles.” That was the reply of J.B.S. Haldane, a British scientific polymath of the early 20th century, when he was asked if there were anything that could be concluded about God from the study of natural history. There are 380,000 catalogued species of beetle, making them the most species-rich group of…

Researchers have found genetic signatures among Britons that betray their historical roots in particular locales of the United Kingdom, leading to the finest-scale map of genetic variation yet created. The analysis — which shows a snapshot of clusters of genetic variation in the late 1800s, when people were less likely to migrate far from their…

Amazoniako oihanak gero eta karbono gutxiago metatzen du. Azken hiru hamarkadetan Amazoniako biomasa-dinamikaren eboluzioa aztertu du nazioarteko ikertzaile-talde zabal batek, eta ondorioztatu dute azken hamarkadan metatu den biomasa aurreko hamarkadan baino heren bat gutxiago izan dela. Naturen argitaratu dituzte emaitzak.

Fifty years ago today, Russian Cosmonaut Alexey Leonov did something no human had ever done before. He jumped out of a spacecraft and into space. «The silence struck me,» he recalls, according to RT.com. «I could hear my heart beating so clearly. I could hear my breath — it even hurt to think.»

Diseñan un sistema de impresión que genera estructuras tridimensionales en apenas unos minutos y de forma continua. El dispositivo se basa en el uso de un baño líquido y es muchísimo más rápido que los que se usan hasta ahora.

Los grandes ungulados de América del Sur a los que se creía relacionados con los elefantes y otros mamíferos africanos, son en realidad más parecidos a los caballos o los rinocerontes