Tag archive: astronomía
The Further Adventures of Betelgeuse, the Fainting Star
The red supergiant is no closer to exploding, it seems. It also no longer appears round.
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.
Una enana blanca que al rotar arrastra el espaciotiempo
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.
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.
Surviving Mars
Settling humans on Mars needs pragmatism at least as much as vision
These Images Show the Sun’s Surface in Greater Detail Than Ever Before
A new telescope in Hawaii takes aim at our nearest star and its mysteries.