SAN JOSE, Calif. — At a nondescript office park in this Silicon Valley city, solar panels from manufacturers around the world are going through tests of extreme endurance to make sure they are safe to put on your roof.

Giant plankton-eating fishes roamed the prehistoric seas for over 100 million years before they were wiped out in the same event that killed off the dinosaurs, new fossil evidence has shown.

A non-pathogenic bacterium is capable to trigger an autoimmune disease similar to the multiple sclerosis in the mouse, the model animal which helps to explain how human diseases work. This is an unprecedented mechanism which could explain how this terrible central nervous system disease starts up in humans.

As spring approaches and people return to outdoor activities, caution should be taken in areas of the country that are home to Loxosceles reclusa, also called the brown recluse spider. A new study found that when patients present with sudden anemia, but the cause is elusive, the brown recluse spider should be part of the differential diagnosis, at least in parts of the nation where the spider is regularly found.

A new study shows mice infected with the bacteria salmonella develop clinical signs consistent with a deadly and poorly understood human inflammatory disease, a finding that may lead to new therapies.

Getting into the solar business is becoming more economically attractive for area companies as technologies improve and consumer interest in renewable energy sources grows.