Steven Weinberg

Mar. 27, 2015

Understanding the Dark Side of Physics

Physicists discuss the quest to understand dark energy and dark matter.

dark matter, physics, jodi cooley, dan hooper, steven weinberg, dark energy

Apr. 03, 2009

Big Questions in Cosmology

In this hour, we'll get an update on the very small--particle physics--and the very large--cosmology--and find out how these two fields of study fit together.

cosmology, physics, origins, arizona

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Michael Pollan Talks Plants and Food

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How Humpbacks Hunt With Bubbles

Humpback whales blow bubbles around schools of fish to concentrate them for easier capture. It's called a bubble net, says David Wiley, research coordinator for Stellwagen Bank National Marine Sanctuary, and it's visible as a ring of bubbles at the surface. Now, with underwater digital tracking tags and custom visualization software, whale researchers can see what the whales are doing underwater when they're bubble-netting.

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