2009 March 31

Archive for March 31, 2009

Señales de un Universo extraño

Señales de un Universo extraño

Los científicos buscan conocer más sobre el universo.

Las supernovas dan información sobre la energía en el espacio.

Hace once años se presentaron por primera vez unos resultados que indicaban que la mayoría de la energía de nuestro Universo no está en las estrellas o en las galaxias, sino está atada al espacio como tal.

mapa-universo-1

En el idioma de los cosmólogos, una gran constante cosmológica está directamente implicada con las nuevas observaciones de lejanas supernovas.

Filed under: Astrofisica,Astronomia,Ciencia,Cosmologia,Geofisica,NASA | | Astrofisica, Astronomia, Ciencia, Cosmologia, ESA, NASA, Universo|No Comments

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Serene Scene

Even in a peaceful looking scene such as this one of Saturn and its moon Tethys, the Cassini spacecraft reveals clues about how Saturn is ever-changing. Saturn's northern hemisphere still shows the scars of the huge storm that raged through much of 2011 (see PIA14905). And, day by day, the shadows cast by the rings on the planet's southern hemisphere are growing wider as the seasons progress toward northern summer. See PIA11667 and PIA09793 to learn about the changing seasons and the shadows cast by the rings. Tethys (660 miles, or 1,062 kilometers across) appears above the rings to the left of the center of the image. The image was taken with the Cassini spacecraft wide-angle camera on Jan. 10, 2012 using a spectral filter sensitive to wavelengths of near-infrared light centered at 752 nanometers. The view was obtained at a distance of approximately 1.4 million miles (2.3 million kilometers) from Saturn and at a Sun-Saturn-spacecraft, or phase, angle of 39 degrees. Image scale on Saturn is 84 miles (136 kilometers) per pixel. Image Credit: NASA/JPL-Caltech/Space Science Institute
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CERN News – Esa astronaut brings neutralino back from space
ESA astronaut and former physicist at CERN Christer Fuglesang returns a symbolic neutralino particle to CERN after flying it to the International Space Station on the occasion of his STS128 mission in 2009. […]
Le coin de l’Ombuds : exclusion sociale
Dans cette édition spéciale vidéo du Coin de l'Ombuds, Vincent Vuillemin, l'Ombuds du CERN, s'intéresse à un cas d'exclusion sociale au CERN. Notez que les personnages et les situations traités dans ce film sont pure fiction, et que toute ressemb... […]
Ombuds’ Corner: Social exclusion
In this special video edition of the Ombuds' Corner, Ombudsman Vincent Vuillemin takes a look at a social exclusion at CERN. Please note that the characters and situations appearing in this work are fictitious, and any resemblance to real persons or ev... […]
Puzzling asymmetries
In a recently published paper, the LHCb collaboration reported on a possible deviation from the Standard Model. Theorists are now working to calculate precisely this effect and to evaluate the implications that such an unexpected result could have on... […]
CMS cathode strip chamber construction at Building 904
CMS will be installing 72 new cathode strip chambers (CSC) to the endcaps of the detector during the 2013/2014 Long Shutdown. These new chambers are currently under construction in Building 904. […]
Puzzling asymmetries
In a recently published paper, the LHCb Collaboration has reported on a possible deviation from the Standard Model. Theorists are now working to calculate precisely this effect and to evaluate the implications that such unexpected result could have on... […]
La densidad de la ‘Posidonia’ del Mediterráneo podría disminuir un 90% a mediados de siglo
Un estudio realizado por investigadores del Consejo Superior de Investigaciones Científicas (CSIC) revela que la densidad de plantas de la especie marina Posidonia oceanica podría disminuir un »» […]
Baterías de litio 10 veces mejores
Consiguen obtener baterías de litio con ánodo de silicio que aguantan más de 6000 ciclos de carga y tienen una capacidad 10 veces superior a las actuales. »» […]
News from the Library: Looking for materials properties? Find the answer in CINDAS databases
Materials properties databases are a crucial source of information when doing research in Materials Science. The creation and regular updating of such databases requires identification and collection of relevant worldwide scientific and technical lit... […]
Ombuds’ Corner: Social exclusion
In this special video edition of the Ombuds' Corner, Vincent Vuillemin takes a look at a social exclusion at CERN. Please note that the characters and situations appearing in this work are fictitious, and any resemblance to real persons... […]

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Archive for March 31, 2009

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