science, technology, environment and health news and discussion from the makers of the npr public radio program science friday with host ira flatow.
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science, technology, environment, stem cells, health, physics, dark energy, matter, cosmology, space, biology, nanotechnology, brain, neuroscience, disease, alternative energy, green news, public policy and discussion from npr public radio program science friday with host ira flatow. science videos, science podcasts, blogs, science iphone app, science friday teachers, science friday teens.