Jeffrey A. Hoffman

Oct. 25, 2013

Science Goes to the Movies: 'Gravity'

Astronauts separate fact from fiction in Alfonso Cuarón's 3-D space epic, Gravity.

Jeffrey Hoffman, Don Pettit, astronauts, gravity, Alfonso Cuarón, 3d, space

Dec. 07, 2012

Ask an Astronaut: Don Pettit and Jeff Hoffman on Spaceflight

Two astronauts answer your questions and discuss the many curiosities of living in space.

astronaut, space shuttle, don pettit, international space station, rocket, mir, soyuz, weightlessness, zero gravity, life in space

Apr. 22, 2011

Reliving 30 Years of Space Travel

The tumultuous saga of the Shuttle program comes to an end and NASA moves on.

space shuttle, space flight, history, launch, exploration, spaceflight

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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Mystery Box

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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