
El asteroide 2010 AL30, que fue descubierto el pasado día 10 por científicos del Instituto Tecnológico de Massachusetts (MIT, por sus siglas en inglés), realizó este miércoles un acercamiento a la superficie terrestre, a las las 13.46 horas, en concreto a unos 128.750 kilómetros de la Tierra, confirmó la Agencia Espacial Norteamericana (NASA). Su tamaño es similar al resto de los dos millones de cuerpos que orbitan alrededor de la Tierra
La Luna orbita a una distancia promedio de 384.000 kilómetros de la Tierra.
El objeto, que no impactó en el planeta, es demasiado pequeño como para causar daños, aún en el caso de una colisión. Su tamaño es similar al resto de los dos millones de cuerpos que orbitan alrededor de la Tierra.
A pesar de que en un principio se pensó que podría ser basura espacial, la NASA señaló que lo más probable es que sea “un asteroide cercano a la Tierra de 10 a 15 metros de tamaño”.
Read more
A near-Earth object that could be manmade has just been discovered hurtling toward us. On Wednesday (Jan. 13), an object called 2010 AL30 will fly by Earth at a distance of just 130,000 km (80,000 miles). That’s only one-third of the way from here to the moon, ie: very close. It will miss us, and if it did hit us, it wouldn’t do any damage anyway, but I managed to pick up on some chatter between planetary scientists and found out that the ‘asteroid’, or whatever it is, gives us a new standard: a 10-meter-wide asteroid can be detected two days before it potentially hits Earth.
Otras noticias y videos de Astrofisica de los ultimos eventos y diferentes misiones de las distintas agencias espaciales.
Space Station Status Briefing
NASA TV coverage of Mondays news conference in Houston updating Expedition 22 aboard the International Space Station.
A sharper view of the Universe with the VLT Interferometer
‘In principle, the larger a telescopes mirror, the finer the details it can see.
Continuing to increase the size of telescope mirrors is not an easy task, so astronomers have come up with a new technology to see even finer details: interferometry. This observational technique combines the light received by two or more telescopes and allows them to act as a single unit with a mirror diameter equivalent to the distance between the telescopes.
Engineers designed the VLT so that it can also be used as an interferometer. Along with the four 8.2-metre Unit Telescopes, four mobile 1.8-metre Auxiliary Telescopes (ATs) were included in the overall VLT concept to form the Very Large Telescope Interferometer (VLTI). The ATs can move between 30 different stations, and at present, the telescopes can form groups of two or three for interferometry.’
http://www.eso.org/public/videos/archive/category/esocast/



