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Feb. 22, 2013

Russia Meteor Renews Focus on Asteroid Threats

Astronomers weigh in on how to keep the planet safe from near-Earth objects.

meteor, asteroid, space junk, collision, space rock, debris, explosion, planetary defense, near-earth objects

Feb. 15, 2013

Tracking a Space Rock's Streak Past Earth

Asteroid 2012 DA14 spans half a football field, and will whiz by the Earth a mere 17,000 miles above us--closer than many satellites.

asteroid, space, deep impact, armageddon, flyby, near-earth object, meteor

Apr. 27, 2012

Mining Quarries Millions of Miles from Earth

A company aims to expand the world’s natural resource base by mining asteroids.

space mining, space, asteroid, excavation, mining, natural resources, resources

Sep. 09, 2011

‘Move An Asteroid’ Competition May Help Protect Planet

This year’s ‘Move an Asteroid’ competition winner shares her idea.

space, neo, asteroid, planetary protection

Jan. 04, 2013

A Journey to the Oort Cloud, Where Comets Are Born

The comet ISON, discovered by two amateur astronomers last year, will zoom past the Earth next fall. But where did it come from?

comet, meteor shower, asteroids, oort cloud, fraknoi

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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FEATURED PLAYLIST

Whale Tales

BOOKS BY OUR GUESTS

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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