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Star trails, one of which is Hamal, via H. Raab on Flickr.
These are star trails, and one of the brightest trails here is Alpha Arietis, or Hamal. To learn which one, click here, then click on the image you find. This neat image is by Herb Raab on Flickr. Click here to expand image.
Matt Daniel's WeatherGlobe
Tsunami warning issued after 8.2 quake in Chile
Blogus scientificus by Alex Reshanov
Do microbes spoil food to avoid sharing?
Earth Trekker by Deanna Conners
This date in science: Landslide at Bingham Canyon Mine