Nell Greenfieldboyce http://blog.wlrn.org en Scientists Spot A Planet That Looks Like 'Earth's Cousin' http://blog.wlrn.org/post/scientists-spot-planet-looks-earths-cousin Scientists who have been hunting for another Earth beyond our solar system have come across a planet that's remarkably similar to our world.<p>It's almost the same size as Earth, and it orbits in its star's "Goldilocks zone" — where temperatures are not too hot, not too cold, and maybe just right for life.<p>But a lot about this planet is going to remain a mystery, because it's 500 light-years away.<p>Researchers detected the planet while poring over data collected by <a href="http://kepler.nasa.gov/">NASA's Kepler Space Telescope</a>. Thu, 17 Apr 2014 19:02:00 +0000 Nell Greenfieldboyce 30953 at http://blog.wlrn.org Scientists Spot A Planet That Looks Like 'Earth's Cousin' Climate Change Adjustments Must Be Fast And Major, U.N. Panel Says http://blog.wlrn.org/post/climate-change-adjustments-must-be-fast-and-large-un-panel-says A new report from the United Nations' panel on climate change says major action is needed, and fast, if policymakers want to limit global warming to acceptable levels.<p>There's an international target to control climate change: keeping the global temperature rise to just 2 degrees Celsius above pre-industrial levels — that's 3.6 degrees Fahrenheit. The <a href="http://mitigation2014.org/">Intergovernmental Panel on Climate Change</a> now says it's technically possible to meet that goal. Sun, 13 Apr 2014 13:40:00 +0000 Nell Greenfieldboyce 30724 at http://blog.wlrn.org Climate Change Adjustments Must Be Fast And Major, U.N. Panel Says Scientists Publish Recipe For Making Bird Flu More Contagious http://blog.wlrn.org/post/scientists-publish-recipe-making-bird-flu-more-contagious The Dutch virologist accused of engineering a dangerous superflu a few years ago is back with more contentious research.<p>In 2011, <a href="http://www.erasmusmc.nl/MScMM/faculty/CVs/fouchier_cv?lang=en">Ron Fouchier</a> and his team at Erasmus Medical Center took the H5N1 flu virus and made it more contagious. Now the team has published another study with more details on the exact genetic changes needed to do the trick.<p>The <a href="http://www.npr.org/tags/146924995/h5n1">H5N1</a> bird flu is known to have sickened 650 people worldwide, and of those, 386 died. Thu, 10 Apr 2014 19:06:00 +0000 Nell Greenfieldboyce 30597 at http://blog.wlrn.org Scientists Publish Recipe For Making Bird Flu More Contagious Smithsonian's Air And Space Museum To Get $30 Million Spiffier http://blog.wlrn.org/post/smithsonians-air-and-space-museum-get-30-million-spiffier Throngs of museum-goers mill through the grand entrance hall of the Smithsonian's National Air and Space Museum in Washington, D.C., every day, gawking at such treasures as the Apollo 11 capsule that carried Neil Armstrong's crew to the moon and back, as well as Charles Lindbergh's Spirit of St. Thu, 03 Apr 2014 17:45:00 +0000 Nell Greenfieldboyce 30244 at http://blog.wlrn.org Smithsonian's Air And Space Museum To Get $30 Million Spiffier Ethicists Tell NASA How To Weigh Hazards Of Space Travel http://blog.wlrn.org/post/ethicists-tell-nasa-how-weigh-hazards-space-travel NASA is hoping to soon venture out farther into space than ever before. Wed, 02 Apr 2014 15:23:00 +0000 Nell Greenfieldboyce 30174 at http://blog.wlrn.org Ethicists Tell NASA How To Weigh Hazards Of Space Travel New Dwarf Planet Found At The Solar System's Outer Limits http://blog.wlrn.org/post/new-dwarf-planet-found-solar-systems-outer-limits Scientists have spotted a new dwarf planet at the edge of our solar system. It's a kind of pink ice ball that's way out there, far beyond Pluto.<p>Astronomers used to think this region of space was a no man's land. But the <a href="http://www.nature.com/news/dwarf-planet-stretches-solar-system-s-edge-1.14921#/ref-link-1">new findings</a> suggest that it holds many small worlds — and there are even hints of an unseen planet bigger than Earth.<p>"We used to think there's just not much out there. Wed, 26 Mar 2014 19:01:00 +0000 Nell Greenfieldboyce 29831 at http://blog.wlrn.org New Dwarf Planet Found At The Solar System's Outer Limits Space Thief Or Hero? One Man's Quest To Reawaken An Old Friend http://blog.wlrn.org/post/space-thief-or-hero-one-mans-quest-reawaken-old-friend More than 30 years ago, Robert Farquhar stole a spacecraft.<p>Now he's trying to give it back.<p>The green satellite, covered with solar panels, is hurtling back toward the general vicinity of Earth, after nearly three decades of traveling in a large, looping orbit around the sun.<p>If Farquhar, a former mission design specialist for NASA, gets his way, the agency will command the spacecraft to fire its thrusters, veer close to the moon, and slip back into the spot where it was intended to be when it was launched in 1978 — and where it was when Farquhar and his accomplices "borrowed" it.<p>Bac Tue, 18 Mar 2014 08:44:00 +0000 Nell Greenfieldboyce 29385 at http://blog.wlrn.org Space Thief Or Hero? One Man's Quest To Reawaken An Old Friend At 4.4 Billion Years Old, Oz Crystals Confirmed As World's Oldest http://blog.wlrn.org/post/44-billion-years-old-oz-crystals-confirmed-worlds-oldest Scientists have used a powerful new technique to prove that some tiny crystals found in Western Australia are indeed the oldest known materials formed on Earth.<p>Back in 2001, scientists reported that one of the zircon crystals was about 4.4 billion years old — so old that not everyone believed it.<p>"There have been challenges, because nothing in science goes without being questioned. Mon, 24 Feb 2014 08:27:00 +0000 Nell Greenfieldboyce 28335 at http://blog.wlrn.org At 4.4 Billion Years Old, Oz Crystals Confirmed As World's Oldest If Yellowstone Could Talk, It Might Squeak. Blame The Helium http://blog.wlrn.org/post/if-yellowstone-could-talk-it-might-squeak-blame-helium A huge amount of ancient helium is rising up from the rocks beneath Yellowstone National Park — about enough to fill up a Goodyear blimp every week.<p>The gas comes from a vast store of helium that's accumulated in the Earth's crust for hundreds of millions of years, scientists report in the journal <a href="http://www.nature.com/nature/journal/v506/n7488/full/nature12992.html">Nature</a> this week.<p>The helium is being released because in the past couple of million years — very recently, in geologic time — that old part of the crust has been feeling the heat from a huge volcano that is now s Wed, 19 Feb 2014 20:39:00 +0000 Nell Greenfieldboyce 28136 at http://blog.wlrn.org If Yellowstone Could Talk, It Might Squeak. Blame The Helium Drugmakers And NIH Band Together To Speed Up Research http://blog.wlrn.org/post/drugmakers-and-nih-band-together-speed-research The National Institutes of Health is teaming up with major drug companies in a new effort to identify disease-related molecules and biological processes that could lead to future medicines.<p>The public-private partnership is called <a href="http://www.nih.gov/science/amp/index.htm">AMP</a>, for the "Accelerating Medicines Partnership," and it will focus first on Alzheimer's disease, Type 2 diabetes, and two autoimmune disorders: rheumatoid arthritis and lupus.<p>This is a five-year, $230 million venture. NIH is splitting the cost with industry. Tue, 04 Feb 2014 20:30:00 +0000 Nell Greenfieldboyce 27423 at http://blog.wlrn.org Drugmakers And NIH Band Together To Speed Up Research Ancient Plague's DNA Revived From A 1,500-Year-Old Tooth http://blog.wlrn.org/post/ancient-plagues-dna-revived-1500-year-old-tooth Scientists have reconstructed the genetic code of a strain of bacteria that caused one of the most deadly pandemics in history nearly 1,500 years ago.<p>They did it by finding the skeletons of people killed by the plague and extracting DNA from traces of blood inside their teeth.<p>This plague struck in the year 541, under the reign of the Roman emperor Justinian, so it's usually called the <a href="http://www.ncbi.nlm.nih.gov/pubmed/22767313">Justinian plague</a>. The emperor actually got sick himself but recovered. Wed, 29 Jan 2014 07:59:00 +0000 Nell Greenfieldboyce 27118 at http://blog.wlrn.org Ancient Plague's DNA Revived From A 1,500-Year-Old Tooth Grand Canyon May Be Older (And Younger) Than You Think http://blog.wlrn.org/post/grand-canyon-may-be-older-and-younger-you-think In recent years geologists have hotly debated the age of the Grand Canyon. Some think it's young (just 6 million years old), while others argue that it dates back 70 million years — to the days of dinosaurs.<p>Now one group says the Grand Canyon is neither young nor old. Instead, these geologists say, it's both.<p>In the journal <em>Nature Geoscience</em>, <a href="http://epswww.unm.edu/facstaff/kek1/">Karl Karlstrom</a>, of the University of New Mexico, and some colleagues describe a new creation story for the Grand Canyon. Mon, 27 Jan 2014 08:33:00 +0000 Nell Greenfieldboyce 27008 at http://blog.wlrn.org Grand Canyon May Be Older (And Younger) Than You Think There She Blew! Volcanic Evidence Of The World's First Map http://blog.wlrn.org/post/there-she-blew-volcanic-evidence-worlds-first-map A new study of volcanic rocks suggests that an ancient mural may indeed depict an erupting volcano, adding new weight to a theory that this image is a contender for the world's oldest known landscape painting or map.<p>The mural was found at a vast archaeological site in central Turkey known as <a href="http://www.catalhoyuk.com/">Catalhoyuk</a>. This Neolithic town goes back 9,000 years and was a huge settlement for a time when people were first transitioning from hunter-gatherer to agricultural societies. Thu, 09 Jan 2014 08:38:00 +0000 Nell Greenfieldboyce 26222 at http://blog.wlrn.org There She Blew! Volcanic Evidence Of The World's First Map Bon Voyage, Voyager: Old Friends Take Stock http://blog.wlrn.org/post/bon-voyage-voyager-old-friends-take-stock For the scientists who have emotionally traveled with NASA's Voyager mission for decades, 2013 will be remembered as the year they knew Voyager 1 had finally become the first explorer from Earth to enter the mysterious realm of interstellar space.<p>Voyager 1 and its twin, Voyager 2, both blasted off in 1977, more than 35 years ago. Voyager 1 flew by Jupiter, then Saturn — and then on toward the unknown region that lies between stars.<p><a href="http://cassini-mimi.jhuapl.edu/SMK_BriefBiography_19-051.htm">Tom Krimigis</a>, 75, works at Johns Hopkins University's Applied Physics Lab. Tue, 31 Dec 2013 08:26:00 +0000 Nell Greenfieldboyce 25825 at http://blog.wlrn.org Bon Voyage, Voyager: Old Friends Take Stock Screening Newborns For Disease Can Leave Families In Limbo http://blog.wlrn.org/post/screening-newborns-disease-can-leave-families-limbo For Matthew and Brianne Wojtesta, it all started about a week after the birth of their daughter Vera. Matthew was picking up his son from kindergarten when he got a phone call.<p>It was their pediatrician, with some shocking news. Vera had been flagged by New York's <a href="http://www.wadsworth.org/newborn/krabbe.htm">newborn screening program</a> as possibly having a potentially deadly disease, and would need to go see a neurologist the next day.<p>Like every state, New York requires that newborns get a small heel prick so that a few drops of blood can be sent to a lab for testing. Mon, 23 Dec 2013 09:20:00 +0000 Nell Greenfieldboyce 25519 at http://blog.wlrn.org Screening Newborns For Disease Can Leave Families In Limbo