Nell Greenfieldboyce appears in the following:
Monday, July 21, 2014
It's been tough to identify the problems that only turn up after medicines are on the market. An experimental project is now combing through data to get earlier, more accurate warnings.
Thursday, July 10, 2014
A team of volunteer space cowboys may have to say goodbye to ISEE-3 and to their dream of reviving for a final mission the creaky, 36-year-old hardware. Failed tests Wednesday suggest a fuel problem.
Tuesday, July 08, 2014
So far, so good. ISEE-3, the versatile 1978 space probe that took a detour to greet a comet in the 1980s, is now on track to get close to the moon, scientists say, though course fixes can be tricky.
Thursday, June 26, 2014
Unrelated lineages of electric fish all use the same small set of genes to create their voltage, a genetic search shows. Maybe the same genes could one day power pacemakers, bioengineers suggest.
Thursday, June 19, 2014
The strong jawline and pronounced teeth of of Neanderthals likely evolved before their large braincase, scientists say. The evidence? A treasure of bones recovered from a single cave in Spain.
Wednesday, June 18, 2014
Museums are filled with dead insects, birds, fish, mammals and reptiles meticulously gathered worldwide in the name of scientific discovery. But some researchers now say scientists should think twice.
Thursday, May 22, 2014
We're sure glad ostriches and emus don't fly. But DNA evidence now suggests their small ancestors flew to each continent, where they evolved independently into giants with stubby wings.
Thursday, May 15, 2014
Some chemical in octopus skin acts as a repellent to the little suction cups on the arms, a surprise finding shows. Without it, the eight-armed creature would tie itself in knots.
Monday, May 12, 2014
NASA held a press conference to discuss the stability of the West Antarctic Ice Sheet and its potential contribution to future sea level rise. The researchers announced that the ice sheet's collapse is both underway and unstoppable.
Wednesday, May 07, 2014
DNA's instructions are written in a code of four molecular "letters," labeled A, C, T and G. For the first time, researchers have created and inserted two brand-new letters into a living cell.
Monday, April 21, 2014
Last year a scientist said he'd found a new form of botulinum toxin, and was keeping details secret to keep the recipe from terrorists. But other science and public health labs were shut out, too.
Thursday, April 17, 2014
Kepler-186f is almost the same size as Earth, and it orbits in its star's "Goldilocks zone"-- where temperatures may be just right for life. But much is unknown because it's also 500 light-years away.
Sunday, April 13, 2014
Greenhouse gas emissions will have to drop 40 to 70 percent by 2050 — and then drop even more, to nearly zero by the end of this century — a new U.N. report says.
Thursday, April 10, 2014
Researchers ignited a debate three years ago when they changed a deadly flu virus so that it could spread between people. Only five mutations are needed to turn the virus into a pandemic threat.
Thursday, April 03, 2014
Curators say they'll use the big grant from Boeing to better highlight how exploratory flight — from the Spirit of St. Louis to the Starship Enterprise — has transformed the world.
Wednesday, April 02, 2014
Risks to astronauts on extended missions include vision impairment, weakened bones and radiation exposure. There are also psychological risks from facing danger while being stuck inside a small craft.
Wednesday, March 26, 2014
The tiny world is a pink-hued ball of ice in an area of space once thought to be relatively empty. But the new findings hint of other small objects — and perhaps an unseen planet bigger than Earth.
Thursday, March 20, 2014
The great spotted cuckoo is a parasitic bird that plops its eggs in nests of other birds, so others can care for its chicks. Those chicks might aid the caretaker bird by helping to repel predators.
Tuesday, March 18, 2014
In the 1980s, NASA engineer Robert Farquhar came up with a sly plan to divert the ISEE-3 satellite from its original path to visit a comet instead. Now Farquhar has another big plan for his "baby."
Monday, February 24, 2014
Zircon crystals found in sandstone on an Australian sheep ranch are so tiny that you'd need a magnifying glass to see them. But recent measurements confirm they offer our earliest glimpse of Earth.