Archivo de etiquetas: geociencias
How peat could protect the planet
Across the globe, drained peatlands are emitting billions of tonnes of carbon dioxide each year. Scotland has emerged as a leader in efforts to restore bogs to health.
Un ‘muñeco de nieve’ en los confines del Sistema Solar
Varios artículos ofrecen nuevos datos sobre las observaciones de la sonda New Horizons, más allá de Plutón. El objeto Arrokoth (antes conocido Ultima Thule), el más lejano que hemos visitado, se formó por la fusión suave de dos lóbulos con forma de lenteja en los albores del sistema solar.
Is an Aboriginal tale of an ancient volcano the oldest story ever told?
Long ago, four giant beings arrived in southeast Australia. Three strode out to other parts of the continent, but one crouched in place. His body transformed into a volcano called Budj Bim, and his teeth became the lava the volcano spat out.
Un terremoto masivo sumergió un continente entero en el océano Pacífico
Zealandia, el séptimo continente de la Tierra y situado al este de Australia, se hundió después de un evento que cambió la velocidad y dirección de la mayoría de las placas tectónicas del planeta
Industria-iraultzaren hastapenetatik metatu ziren poluitzaileak Himalaiako glaziarretan
Industria-iraultzaren ezaugarri nagusietakoa energia-kontsumoa izan zen: ikatza izan zen aldaketa bultzatu zuen erregaia. Orain frogatu dutenez, errekuntza haren aztarnak iraultzaren hasieratik bertatik metatu ziren Himalaiako goi-glaziarretan.
The Grand Unified Theory of Rogue Waves
Rogue waves — enigmatic giants of the sea — were thought to be caused by two different mechanisms. But a new idea that borrows from the hinterlands of probability theory has the potential to predict them all.
Asteroid That Killed the Dinosaurs Was Great for Bacteria
The smoldering crater left by the apocalyptic space rock became a nice home for blue-green algae within years of the impact.
Could a habitable planet orbit a black hole?
Supermassive black holes have a reputation for consuming everything in their path, from gas clouds to entire solar systems. So is there any way aliens could live on a world that actually orbited one of these cosmic beasts? Surprisingly, the answer is a tentative yes, researchers say, although there are plenty of reasons why life could never take hold in such a place. If it did, living on such a planet would be truly surreal, with the black hole filling nearly half the sky and concentrating leftover photons from the big bang into a pseudosun.
Confirmado: la gravedad varía según las estaciones y la meteorología
El campo gravitatorio de la Tierra no es una esfera uniforme y su intensidad va cambiando en función de los cambios estacionales y meteorológicos