Daily Archives: March 8, 2012

CERN-Video News Release-ALPHA2-2012.

CERN experiment makes spectroscopic measurement of antihydrogen Geneva, 7 March 2012. In a paper published online today by the journal Nature, the ALPHA collaboration at CERN1 reports an important milestone on the way to measuring the properties of antimatter atoms. This follows news reported in June last year that the collaboration had routinely trapped antihydrogen atoms for long periods of time. ALPHA's latest advance is the next important milestone on the way to being able to make precision comparisons between atoms of ordinary matter and atoms of antimatter, thereby helping to unravel one of the deepest mysteries in particle physics and perhaps understanding why a Universe of matter exists at all. "We've demonstrated that we can probe the internal structure of the antihydrogen atom," said ALPHA collaboration spokesman, Jeffrey Hangst, "and we're very excited about that. We now know that it's possible to design experiments to make detailed measurements of antiatoms." Today, we live in a Universe that appears to be made entirely of matter, yet at the Big Bang, matter and antimatter would have existed in equal amounts. The mystery is that all the antimatter seams to have gone, leading to the conclusion that nature must have a slight preference for matter over antimatter. If antihydrogen atoms can be studied in detail, as ALPHA's latest result suggests, they may provide a powerful tool for investigating this preference. Hydrogen atoms consist of an electron orbiting a <b>…</b>
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CERN-animation ALPHA2-2012.flv

animation ALPHA2 capturing and measuring an anti-hydrogen In a paper published online today by the journal Nature, the ALPHA collaboration at CERN reports an important milestone on the way to measuring the properties of antimatter atoms. This follows news reported in June last year that the collaboration had routinely trapped antihydrogen atoms for long periods of time. ALPHA's latest advance is the next important milestone on the way to being able to make precision comparisons between atoms of ordinary matter and atoms of antimatter, thereby helping to unravel one of the deepest mysteries in particle physics and perhaps understanding why a Universe of matter exists at all. Produced by: CERN video productions Director: CERN video productions 02 March 2012 / © 2012 CERN www.cern.ch
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CERN news-ALPHA2 antimatter.flv

CERN news : ALPHA2 antimatter CERN experiment makes spectroscopic measurement of antihydrogen CERN experiment makes spectroscopic measurement of antihydrogen Geneva, 7 March 2012. In a paper published online today by the journal Nature, the ALPHA collaboration at CERN* reports an important milestone on the way to measuring the properties of antimatter atoms. This follows news reported in June last year that the collaboration had routinely trapped antihydrogen atoms for long periods of time. ALPHA's latest advance is the next important milestone on the way to being able to make precision comparisons between atoms of ordinary matter and atoms of antimatter, thereby helping to unravel one of the deepest mysteries in particle physics and perhaps understanding why a Universe of matter exists at all. "We've demonstrated that we can probe the internal structure of the antihydrogen atom," said ALPHA collaboration spokesman, Jeffrey Hangst, "and we're very excited about that. We now know that it's possible to design experiments to make detailed measurements of antiatoms." Today, we live in a Universe that appears to be made entirely of matter, yet at the Big Bang, matter and antimatter would have existed in equal amounts. The mystery is that all the antimatter seams to have gone, leading to the conclusion that nature must have a slight preference for matter over antimatter. If antihydrogen atoms can be studied in detail, as ALPHA's latest result suggests, they may provide a <b>…</b>
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NASA to Hold Media Briefing About Upcoming NuSTAR Mission


Artist's concept of NuSTAR on orbit. NuSTAR has a 10-m (30') mast that deploys after launch to separate the optics modules (right) from the detectors in the focal plane (left).

NASA will hold a media briefing at 9 a.m. PDT (12 p.m. EDT) on Tuesday, March 13, to discuss the upcoming launch of an innovative X-ray telescope called NuSTAR.


NASA’s Kepler Mission Wins Aviation Week Award


Roger Hunter (left) Kepler project manager, and Jim Fanson (middle)

NASA’s Kepler mission has been named the winner of the 2012 Aviation Week Laureate Award in the Space category.


El campo magnético protege a nuestra atmósfera

El paso de una ráfaga de viento solar durante una alineación planetaria ha permitido comparar cómo afectan estos fenómenos a las atmósferas de la Tierra y Marte. El resultado es evidente: el campo magnético de nuestro planeta es fundamental para mantener a la atmósfera en su sitio.

Nebulosa de la Gaviota

Esta ancha extensión de gas brillante y polvo se presenta con rostro de ave para los astrónomos del planeta Tierra, sugiriéndoles su popular apodo – La Nebulosa de la Gaviota.

Este retrato del ave cósmica cubre una ancha franja de 1,6 grados a través del plano de la Vía Láctea, cerca de la dirección de Sirio, la estrella alfa de la constelación Canis Major.

Por supuesto, la región incluye objetos con otras designaciones catalogadas: en particular NGC 2327, una región de emisión compacta y polvorienta con una estrella masiva incrustada que forma la cabeza del ave (también llamada la Nebulosa del Loro, sobre el centro).

IC 2177 forma el amplio arco de las alas de la gaviota.

Dominada por el brillo rojizo del hidrógeno atómico, la mezcla de nubes de gas y polvo con brillantes estrellas jóvenes abarca unos 100 años luz, y se encuentra a una distancia estimada de 3.800 años luz.