Energy
U.S. Natural Gas Exports Stir Debate
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Monday, February 11, 2013
The Salt
Pig Manure Reveals More Reason To Worry About Antibiotics
February 11, 2013 Manure from pig farms doesn't just contain residues of antibiotics used in livestock. It also carries high concentrations of antibiotic-resistant bacteria, a new study of Chinese pig farms finds. And researchers say "it's a global problem."
Under The Label: Sustainable Seafood
Is Sustainable-Labeled Seafood Really Sustainable?
February 11, 2013 Industry demand for the "sustainable seafood" label, issued by the Marine Stewardship Council, is increasing. But some environmentalists fear fisheries are being certified despite evidence showing that the fish population is in trouble — or when there's not enough information to know the impact on the oceans.
Krulwich Wonders...
The Egg Makes Its Move In A New Version Of Which Came First: The Chicken Or the Egg?
February 11, 2013 Everybody knows you need a chicken to lay an egg. Everybody knows you need an egg to produce a chicken. What nobody knows is how the cycle started. Here's a new take, that leans eggwards — and it's fun to watch.
Sunday, February 10, 2013
Space
To Infinity And Beyond: Would-Be Astronauts Keep Faith In Uncertain Era
February 10, 2013 As NASA moves away from manned missions, the private sector is taking on the task. Those hoping for a ride are as eager as ever, and space exploration hasn't lost a bit of its luster.
Space
Want To Create A Space Symphony? Wait For A Solar Storm
February 10, 2013 Although you can't hear anything in space, scientists can still use sound to understand the solar system by turning data collected by NASA satellites into sounds and music. Listen to how one sonification specialist creates music out of eruptions on the sun.
Environment
Is The Earth Cooking Up Another Super Volcano?
February 10, 2013 Every few million years or so, the Earth burps up a super volcano that can erupt continuously for thousands of years. A scientist who's mapping the planet's interior has an idea about what causes these super volcanoes and when we might expect another one.
Saturday, February 09, 2013
Animals
Vultures Beware: Virginia Town Targets Flock Of Unwanted Visitors
February 9, 2013 In the town of Leesburg, Va., a flock of 200 turkey vultures takes over suburban backyards every few years. Despite their seeming abundance, the birds are protected by federal law, so the residents called in backup for some official vulture harassment.
Krulwich Wonders...
Yes, Cats Know How To Fall On Their Feet. But These Guys Do It Better
February 9, 2013 Drop a cat from a bed, a chair or a tree, and it will do its wriggly thing and land on all four feet. Cats are famous for this. But we've discovered an animal that does it better. Meet the new champ.
Friday, February 08, 2013
Space
Close Shave: Asteroid To Buzz Earth Next Week
February 8, 2013 At its closest approach, the office building-sized asteroid will be only about 17,200 miles above the surface of our planet. That's far nearer to us than the moon, and even closer than some weather and communications satellites. Some people think this near miss should serve as a wake-up call.
Thursday, February 07, 2013
The Salt
Animal Magnetism: How Salmon Find Their Way Back Home
February 7, 2013 When salmon are ready to leave the ocean and go back to their birthplace, they use magnetism to find their home river. But scientists fear fish born in hatcheries might have a poor sense of direction if they're raised in places surrounded by man-made objects that drown out the planet's natural magnetic field.
