Tag archive: astronomía

Jupiterren Io ilargiak astronomoak inspiratu ditu, eta urrutiko exoplanetak bilatzeko modu berri bat sortu dute. Jupiterrek etengabe izaten ditu aurorak bere poloetan, baina Iok gertu orbitatzen duenean, planetaren eremu magnetikoan eragin eta aurora distiratsuen eztanda moduko bat sortzen du Jupiterren atmosferan. Hala, Io ikusi gabe ere, sortzen dituen eztanda errepikakorrek agerian jartzen dute bere presentzia. Hori kontuan hartuta, astronomoek, lehenengo aldiz, eguzki-sistematik kanpoko planeta batek bere izarrean eragin ahal izan dituen aurorak identifikatu dituzte. Hala, exoplaneta berri bat aurkitu dutela adierazi dute Nature Astronomy aldizkariak argitaratutako ikerketan.

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A recent neutron star merger has defied astronomers’ expectations, leading them to question longstanding ideas about neutron stars and the supernovas that create them. “We have to go back to the drawing board.”

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By watching for a special kind of flare, astronomers have identified the fingerprints of an Earth-size planet orbiting a distant star.

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Hoy conocemos más de 4000 planetas más allá del Sistema Solar, y estamos empezando a buscar signos de vida

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The red supergiant is no closer to exploding, it seems. It also no longer appears round.

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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.

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Scientists develop a new way to study lunar chemistry.

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Unas observaciones recientes han confirmado el efecto Lense-Thirring: el arrastre del espaciotiempo por una masa que rote, según predice la teoría de la relatividad general.

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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.

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Settling humans on Mars needs pragmatism at least as much as vision

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