A human disease pandemic, European honey bee colonies wiped out and an invasion of a devastating wheat disease are just three potential biosecurity threats facing Australia, according to a report released this week. These three events alone could devastate Australia’s […]test
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A new geologic map of the asteroid Vesta has been published by Arizona State University planetary scientist David Williams and his colleagues. It's online in the December special issue of the journal Icarus on The Geology of Vesta.They propose a chronostratigraphic scheme and geologic timescale for Vesta with four periods based on major impact events. The conclude that the proposed vestan geologic timescale is comparable to those developed for other airless terrestrial planets, and
I was not able to get a good, clear photo of the lahar deposits around the river at this stop, but this is the best of them. In the little slice of whitewater right near the center of the shot, you can see some of the rounded boulders that characterize much of the upper stretch of this river. And though it's over exposed, you can see more of the poorly sorted and essentially un-bedded deposits on the far bank. Near the top, it looks as if we're seeing a talus pile from a still higher (though
Quick links from the past week in mind and brain news: The Pentagon publishes their plan for future war and they seem to have ripped off the plot from 1980s Rogue Trooper story lines. The Scientist has a basic guide to imaging white matter with diffusion MRI. Next week in The Scientist: Collar up or […]
Doug chronicled one of the issues that public health folks deal with regularly – what to tell the public about investigations into outbreaks, and when – for his most recent column for Texas A&M’s Center for Food Safety, Go public … Continue reading →