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News | Archive (17 August 2007)
Moving to the rhythm of the Sun
— 10:14 GMT | AstronomyScientists from the Ulysses mission have proven that sounds generated deep inside the Sun cause the Earth to shake and vibrate in sympathy. They have found that Earth's magnetic field, atmosphere and terrestrial systems, all take part in this cosmic sing-along. David Thomson and Louis Lanzerotti, team members of the HISCALE experiment, on board Ulysses, together with colleagues Frank Vernon, Marc Lessard and Lindsay Smith, present evidence that proves that Earth moves to the rhythm of the Sun. They show that distinct, isolated tones, predicted to be generated by pressure and gravity waves in the Sun, are present in a wide variety of terrestrial systems…
Fossil fish jaws give information on our own remote ancestors
— 07:44 GMT | Geology and palaeontologyWhen we lose our milk teeth they are replaced by new permanent teeth growing out in exactly the same positions. This is an ancient part of our evolutionary heritage and an identifying characteristic of the largest living group of backboned animals. Now, an international team including two scientists from Uppsala University has uncovered ancient fossil fish jaws that cast light on the origin of this group and its unique dentition…
Innovative Uranidrome observatory provides unique learning lab
— 07:44 GMT | AstronomySay 'astronomy,' and most think of a telescope. Or, mention the word 'observatory,' and many may envision a domed building with a telescope. There is, however, an astronomical observatory at Middle Tennessee State University (MTSU) in Murfreesboro that has no telescope, no dome. It's 90 feet in diameter, with 12 columns, each precisely aligned with the Earth and the heavens. The columns are inscribed with information about the Sun, Moon, Earth the other seven planets, as well as Pluto. Atop each column is a metal sculpture, some of which are abstract decorations and others that are formed to represent specific celestial observations…
Scientists retrace evolution with first atomic structure of an ancient protein
— 07:44 GMT | ChemistryScientists have determined for the first time the atomic structure of an ancient protein, revealing in unprecedented detail how genes evolved their functions. Never before have we seen so clearly, so far back in time, said project leader Joe Thornton, an evolutionary biologist at the University of Oregon. We were able to see the precise mechanisms by which evolution molded a tiny molecular machine at the atomic level, and to reconstruct the order of events by which history unfolded…
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Gobi Desert yield new species of nut-cracking dinosaur
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