Etiquetado con: "universos paralelos"

«Dark» es un hermoso dolor de cabeza

«Dark» es un hermoso dolor de cabeza

Cuando servidor iba al colegio, había un niño que resolvía el cubo de Rubik en un abrir y cerrar de ojos, en pocos segundos, y fue el héroe del recreo durante un par de semanas. Creo que nunca llegué a resolver el cubo ni por capítulos, así que la hazaña me parecía mágica, irreal, fascinante. ¿Cómo era posible? ¿Cómo podía […]

This panoramic view of the Chajnantor plateau, spanning about 180 degrees from north (on the left) to south (on the right) shows the antennas of the Atacama Large Millimeter/submillimeter Array (ALMA) ranged across the unearthly landscape. Some familiar celestial objects can be seen in the night sky behind them. These crystal-clear night skies explain why Chile is the home of not only ALMA, but also several other astronomical observatories. This image is just part of an even wider panorama of Chajnantor. In the foreground, the 12-metre diameter ALMA antennas are in action, working as one giant telescope, during the observatory’s first phase of scientific observations. On the far left, a cluster of smaller 7-metre antennas for ALMA’s compact array can be seen illuminated. The crescent Moon, although not visible in this image, casts stark shadows over all the antennas. In the sky above the antennas, the most prominent bright “star” — on the left of the image — is in fact the planet Jupiter. The gas giant is the third brightest natural object in the night sky, after the Moon and Venus. The Large and Small Magellanic Clouds can also be clearly seen on the right of the image. The Large Magellanic Cloud looks like a puff of smoke, just above the rightmost antenna. The Small Magellanic Cloud is higher in the sky, towards the upper-right corner. Both “clouds” are in fact dwarf irregular galaxies, orbiting the Milky Way galaxy, at distances of about 160 000 and 200 000 light-years respectively. On the far left of the panorama, just left of the foreground antennas, is the elongated smudge of the Andromeda galaxy. This galaxy, more than ten times further away than the Magellanic Clouds, is our closest major neighbouring galaxy. It is also the largest galaxy in the Local Group — the group of about 30 galaxies which includes our own — and contains approximately one trillion stars, more than twice as many as the Milky Way. It is the only major galaxy visible

Universos paralelos, explosiones cósmicas y la paradoja de Fermi

Antes del año 1995 solo conocíamos una estrella que tenía planetas a su alrededor: el Sol. El delicado equilibrio del sistema solar, el hecho de que un sistema gravitatorio de más de dos cuerpos sea altamente inestable, caótico, donde cualquier pequeña perturbación (como mover Mercurio unos centímetros) puede desestabilizarlo todo, hacía pensar que no tendría que ser muy común tener […]