Archive for August 10th, 2012
Results from an expedition to far eastern Russia that set out to find the origin of naturally occurring quasicrystals have provided convincing evidence that they arrived on Earth from outer space.
Writing in IOP Publishing's journal Reports on Progress in Physics, Paul J Steinhardt and Luca Bindi reveal that new, naturally occurring quasicrystal samples have been found in an environment that does not have the extreme terrestrial conditions needed to produce them, therefore strengthening the case that they were brought to Earth by a meteorite. Furthermore, their findings reveal that the samples of quasicrystals were brought to the area during the last glacial period, suggesting the meteorite was most likely to have hit Earth around 15 000 years ago.
The number of human infections with an influenza A H3N2 variant virus (H3N2v) originating in swine sharply increased over the past week, likely related to exposure at pig exhibitions at agricultural fairs, the CDC reported.
As of Thursday, the official count stood at 158 confirmed cases since the virus was identified in July 2011, up from 29 last week. The bulk of those cases have been reported since July 12, including 113 in Indiana, 30 in Ohio, and one each in Hawaii and Illinois.