Nell Greenfieldboyce

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NASA's Curiosity Finds Water Once Flowed On Mars

Friday, September 28, 2012

NASA's newest Mars rover snapped photos of rocky outcroppings that jut out from the alien soil. Scientists say they look like the remnants of an ancient stream bed where water once flowed on the surface of the red planet.

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After 35 Years, Voyager Nears Edge Of Solar System

Wednesday, September 05, 2012

One of the twin space probes launched 35 years ago has traveled more than 11 billion miles from Earth. The Voyager probes were originally slated just to examine Jupiter and Saturn during a five-year trip.

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SpaceX Ship Passes Close By International Space Station

Thursday, May 24, 2012

So far everything looks good for a possible docking with the station on Friday by the company's Dragon capsule.

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Shuttle Discovery To Make Final Flight, Atop A 747

Monday, April 16, 2012

The first of NASA's retired space shuttles will make its way to its new retirement home on April 17. The well-traveled orbiter will be flown low over the nation's capital before being...

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Scientists Take Cautious Tack On Bird Flu Research

Monday, February 13, 2012

Last month, scientists around the world agreed to temporarily halt certain genetic experiments with bird flu viruses. More than three weeks of that 60-day moratorium have already passed. And the scientific community is in the midst of a fierce debate about what needs to happen next.

The suspension of the ...

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U.S. Says Details Of Flu Experiments Should Stay Secret

Wednesday, December 21, 2011

In a landmark decision, an expert panel that advises the government on research security says key details of work on the contagiousness of flu viruses should not be published openly. I

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Found: Earth-Like Planet That Might Be Right For Life

Monday, December 05, 2011

The planet, dubbed Kepler-22b, isn't much larger than Earth and is orbiting a star in a region that's not too hot and not too cold — just the kind of place that could be home to liqui...

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Race

Monday, December 15, 2008

Radiolab asks what race is, and whether it's fixed or fluid, genes or culture?

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Race Doesn't Exist. Or Does It?

Monday, December 15, 2008

Race doesn't exist. Or does it?

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Sperm

Monday, December 01, 2008

We examine our beginnings, take a tour of the animal kingdom, and ponder a world where frozen sperm can last for all eternity.

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