Nell Greenfieldboyce

Nell Greenfieldboyce appears in the following:

Galaxy Quest: Just How Many Earth-Like Planets Are Out There?

Tuesday, November 05, 2013

A team of planet hunters estimates that about 22 percent of the sun-like stars in our galaxy may have planets about the size of Earth that are bathed in similar amounts of sunlight — and potentially habitable.

That's the conclusion of a new analysis of observations taken by NASA's Kepler ...

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The Tail's The Tell: Dog Wags Can Mean Friend Or Foe

Friday, November 01, 2013

By Nell Greenfieldboyce

Dogs can pick up emotional cues from another dog by watching the direction of its wagging tail, a new study suggests.

In a series of lab experiments, dogs got anxious when they saw an image of a dog wagging its tail to its left side. But when they saw a ...

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Sand From Fracking Could Pose Lung Disease Risk To Workers

Friday, March 29, 2013

By Nell Greenfieldboyce

When workplace safety expert Eric Esswein got a chance to see fracking in action not too long ago, what he noticed was all the dust.

It was coming off big machines used to haul around huge loads of sand. The sand is a critical part of the hydraulic fracturing method ...

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NASA Says Ancient Mars Could Have Supported Life

Wednesday, March 13, 2013

By Nell Greenfieldboyce

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Is Another Moon Mission Written In The Stars?

Friday, December 07, 2012

By Nell Greenfieldboyce

It's been 40 years since NASA launched Apollo 17, its final human mission to the moon. The commander of that mission says he'd love to give up his claim to fame as "the last man on th...

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Ingredients For A Homestyle Thanksgiving, 200 Miles Above The Earth

Thursday, November 22, 2012

By Nell Greenfieldboyce

Candied yams with a touch of marshmallow cream are what the astronauts on the International Space Station are looking forward to eating for their Thanksgiving feast today. That and a ...

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Scientist Cleared In Polar Bear Controversy

Friday, September 28, 2012

By Nell Greenfieldboyce

Charles Monnett's 2006 report on drowning polar bears became a rallying cry for environmentalists. Then he was accused of scientific misconduct. On Friday, he learned he had been cleared.

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NASA's Curiosity Finds Water Once Flowed On Mars

Friday, September 28, 2012

By Nell Greenfieldboyce

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

By Nell Greenfieldboyce

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

By Nell Greenfieldboyce

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

By Nell Greenfieldboyce

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

By Nell Greenfieldboyce

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

By Nell Greenfieldboyce

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

By Nell Greenfieldboyce

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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