Browsing All Posts published on »July 1st, 2011«

Galaxy classification is out of tune, say astronomers

July 1, 2011

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The way galaxies have been classified for decades has been questioned by an international team of astronomers. After revealing that two-thirds of local elliptical galaxies are actually fast-spinning discs, the team has suggested that the Hubble “tuning fork” – the long-standing method for classifying galaxies – may need retuning. Galaxies come in all shapes and […]

Raman Spectra of Graphene and Carbon Nanotubes

July 1, 2011

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Why skin is a better lens than glass

July 1, 2011

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IT’S as if Humpty Dumpty was put back together again – stronger than before. Light that passes through an opaque medium, such as an eggshell, can be reassembled in sharper detail and over a wider field of view than if it passed through a transparent lens alone. Such “scattering” lenses could one day be used […]

NASA’s Spitzer Finds Distant Galaxies Grazed on Gas

July 1, 2011

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Galaxies Near and Far Galaxies once thought of as voracious tigers are more like grazing cows, according to a new study using NASA’s Spitzer Space Telescope. Astronomers have discovered that galaxies in the distant, early universe continuously ingested their star-making fuel over long periods of time. This goes against previous theories that the galaxies devoured […]