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News | Archive (15 November 2007)
Rocky planets forming in Pleiades star cluster
— 18:22 GMT | AstronomyRocky terrestrial planets, perhaps like Earth, Mars or Venus, appear to be forming or to have recently formed around a star in the Pleiades ('Seven Sisters') star cluster, the result of 'monster collisions' of planets or planetary embryos. Astronomers using the Gemini Observatory in Hawaii and the Spitzer Space Telescope report their findings in an upcoming issue of the Astrophysical Journal, the premier journal in astronomy…
Dinosaur from Sahara had a mouth that worked like a vacuum cleaner
— 16:30 GMT | Geology and palaeontologyA 110 million-year-old dinosaur that had a mouth that worked like a vacuum cleaner, hundreds of tiny teeth and nearly translucent skull bones was unveiled Thursday, 15 Nov., at the National Geographic Society. Found in the Sahara by Professor Paul Sereno, University of Chicago palaeontologist and National Geographic Explorer-in-Residence, the dinosaur is a plant eater known as Nigersaurus taqueti. Originally named by Sereno and his team in 1999 with only a few of its distinctive bones in hand, Nigersaurus has emerged as an anatomically bizarre dinosaur…
Hubble zooms in on heart of mystery comet
— 14:00 GMT | AstronomyNASA's Hubble Space Telescope has probed the bright core of comet 17P/Holmes, which, to the delight of sky watchers, mysteriously brightened by nearly a millionfold in a 24-hour period beginning 23 October 2007. Astronomers used Hubble's powerful resolution to study Comet Holmes' core for clues about how the comet brightened. The orbiting observatory's Wide Field Planetary Camera 2 (WFPC2) monitored the comet for several days, snapping images on 29 Oct., 31 Oct., and 4 Nov. Hubble's crisp 'eye' can see objects as small as 33 miles (54 kilometres) across, providing the sharpest view yet of the source of the spectacular brightening…
Trapped rainbow: New technique to slow down, stop and capture light
— 14:00 GMT | PhysicsProfessor Ortwin Hess, his PhD student Kosmas Tsakmakidis of the Advanced Technology Institute and Department of Physics at the University of Surrey and Professor Alan Boardman from Salford University have revealed a technique which may be able to slow down, stop and capture light…
Water and climate: making the link
— 12:13 GMT | EnvironmentAustralia's leading scientists in climate change and water research will meet in Canberra tomorrow and Friday to discuss the consequences of climate change on Australia's water resources…
Ocean robots network achieves universal coverage
— 12:13 GMT | EnvironmentScientist's efforts to fathom how the oceans influence climate and fisheries productivity enter a new era this month with the milestone establishment of a network of 3,000 futuristic, 1.5-metre tall ocean robots operating simultaneously throughout the world's oceans…
Male fish fake it to achieve oral mating
— 12:13 GMT | BiologyA gene has been found in male cichlid fish that evolved to lure female fish so that male cichlids can deposit sperm in the females mouths. A study in the online open access journal BMC Biology reveals that the gene is associated with egg-like markings on the fins of cichlid fishes and uncovers the evolutionary history of these markings, which are central to the success of the fishes' exotic oral mating behaviour…
Left brain helps hear through the noise
— 12:13 GMT | BiologyOur brain is very good at picking up speech even in a noisy room, an adaptation essential for holding a conversation at a cocktail party, and now we are beginning to understand the neural interactions that underlie this ability. An international research team reports today, in the online journal BMC Biology, how investigations using neuroimaging have revealed that the brain's left hemisphere helps discern the signal from the noise…
Watching galaxies grow old gracefully
— 11:00 GMT | AstronomyIn the early 1900s, Edwin Hubble made the startling discovery that our Milky Way galaxy is not alone. It is just one of many galaxies, or 'island universes,' as Hubble dubbed them, swimming in the sea of space. Now, a century later, NASA's Galaxy Evolution Explorer is helping piece together the evolution of these cosmic species. Since its launch in 2003, the mission has surveyed tens of thousands of galaxies in ultraviolet light across nine billion years of time…
Fire, ice, and invasion
— 11:00 GMT | Geology and palaeontologyThe November 2007 Special Issue of Frontiers in Ecology and the Environment focuses on palaeoecology, which uses fossilised remains and soil and sediment cores to reconstruct past ecosystems…
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Digging deep into the genetics of schizophrenia by evaluating microRNAs
The Antennae Galaxies move closer