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martes, 24 de noviembre de 2015

NSF: NEON begins to monitor changing ecology of the U.S. .- NEON comienza a registrar el cambio de la ecología de los EE.UU.

NEON begins to monitor changing ecology of the U.S.

The National Ecological Observatory is the most comprehensive, long-term effort ever to record what's happening to the land, air and living things
The National Ecological Observatory (NEON) is a large-facility project managed by NEON, Inc., and funded by the National Science Foundation (NSF). NEON is a continental-scale research platform for discovering and understanding the impacts of climate change, land-use change and invasive species on ecological systems.
NEON will gather long-term data on the biosphere's response to changes in land use and climate, as well as its interactions with the geosphere, hydrosphere and atmosphere. Data will be collected by automated sensors, an airplane and field crews in 20 NEON regions, or 'domains,' over 30 years-time. Scientists and the public everywhere can access the data online. The Mid-Atlantic domain comprises the core site in Front Royal, Virginia, at the Smithsonian Conservation Biology Institute's 3,200-acre campus, along with two additional sites located at Blandy Experimental Farm near White Post, Virginia, and the Smithsonian Environmental Research Center in Edgewater, Maryland.
Research in this episode was supported by NSF grant #1246537, NEON Initial Operations.

aerial view of Dalton Highway, Alaska
NSF has funded 19 projects to enable innovative biological research and foster collaborations that leverage data from NEON, a groundbreaking, continent-wide observatory that allows scientists to systematically study the Earth's biosphere. Find out more in this news release.
Credit: National Ecological Observatory Network
NEON fire
In response to one of the worst wildfires in Colorado history, scientists from the Warner College of Natural Resources at Colorado State University (CSU) led a first of its kind, large-scale wildfire impact study on the 2012 High Park fire in partnership with Colorado's newest research facility, NEON. The study was expected to provide critical data to communities still grappling with how to respond to major water quality, erosion and ecosystem restoration issues in an area spanning more than 136 square miles. Find out more in this Science Nation video.
Credit: Science Nation, National Science Foundation
Related Links
The Emerging Frontiers Division of NSF's Directorate for Biological Sciences is an incubator for 21st century biology. EF supports multidisciplinary research opportunities and networking activities that arise from advances in disciplinary research. By encouraging synergy between disciplines, EF provides a mechanism by which new initiatives will be fostered and subsequently integrated into core programs.
Multimedia resources explain little known societal benefits of biodiversity, bust myths and describe new, high-tech approaches for measuring impacts of environmental change on biodiversity.

the National Science Foundation (NSF).
Guillermo Gonzalo Sánchez Achutegui
Incríbete en el Foro del blog y participa : A Vuelo De Un Quinde - El Foro!

NASA : Where Alice in Wonderland Meets Albert Einstein .- Cuando Alicia en el país de las maravillas resuelve Albert Einstein

Hola amigos: A VUELO DE UN QUINDE EL BLOG., Hace cien años este mes, Albert Einstein publicó su teoría de la relatividad general, uno de los logros científicos más importantes del siglo pasado.
Un resultado clave de la teoría de Einstein es que la materia deforma el espacio-tiempo, y por lo tanto un objeto masivo puede causar una flexión observable de luz de un objeto del fondo. El primer éxito de la teoría fue la observación, durante un eclipse solar, que la luz de una lejana estrella del fondo fue desviado por la cantidad prevista al pasar cerca del sol.
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The "Cheshire Cat” group of galaxies .
One hundred years ago this month, Albert Einstein published his theory of general relativity, one of the most important scientific achievements in the last century.
A key result of Einstein’s theory is that matter warps space-time, and thus a massive object can cause an observable bending of light from a background object.  The first success of the theory was the observation, during a solar eclipse, that light from a distant background star was deflected by the predicted amount as it passed near the sun.
Astronomers have since found many examples of this phenomenon, known as “gravitational lensing.” More than just a cosmic illusion, gravitational lensing provides astronomers with a way of probing extremely distant galaxies and groups of galaxies in ways that would otherwise be impossible even with the most powerful telescopes.
The latest results from the “Cheshire Cat” group of galaxies show how manifestations of Einstein’s 100-year-old theory can lead to new discoveries today. Astronomers have given the group this name because of the smiling cat-like appearance.  Some of the feline features are actually distant galaxies whose light has been stretched and bent by the large amounts of mass, most of which is in the form of dark matter detectable only through its gravitational effect, found in the system.
More specifically, the mass that distorts the faraway galactic light is found surrounding the two giant “eye” galaxies and a “nose” galaxy. The multiple arcs of the circular “face” arise from gravitational lensing of four different background galaxies well behind the “eye” galaxies. The individual galaxies of the system, as well as the gravitationally lensed arcs, are seen in optical light from NASA’s Hubble Space Telescope.
Each “eye” galaxy is the brightest member of its own group of galaxies and these two groups are racing toward one another at over 300,000 miles per hour. Data from NASA’s Chandra X-ray Observatory (purple) show hot gas that has been heated to millions of degrees, which is evidence that the galaxy groups are slamming into one another. Chandra’s X-ray data also reveal that the left “eye” of the Cheshire Cat group contains an actively feeding supermassive black hole at the center of the galaxy.
Astronomers think the Cheshire Cat group will become what is known as a fossil group, defined as a gathering of galaxies that contains one giant elliptical galaxy and other much smaller, fainter ones. Fossil groups may represent a temporary stage that nearly all galaxy groups pass through at some point in their evolution.  Therefore, astronomers are eager to better understand the properties and behavior of these groups.
The Cheshire Cat represents the first opportunity for astronomers to study a fossil group progenitor. Astronomers estimate that the two “eyes” of the cat will merge in about one billion years, leaving one very large galaxy and dozens of much smaller ones in a combined group.  At that point it will have become a fossil group and a more appropriate name may be the “Cyclops” group.
A new paper on the Cheshire Cat was recently published in The Astrophysical Journal and appears online. The authors are Jimmy Irwin (University of Alabama), Renato Dupke (National Observatory of Brazil), Rodrigo Carrasco (Gemini Observatory), Peter Maksym (Harvard-Smithsonian Center for Astrophysics), Lucas Johnson, Raymond White III (Alabama).
NASA's Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program for NASA's Science Mission Directorate in Washington. The Smithsonian Astrophysical Observatory in Cambridge, Massachusetts, controls Chandra's science and flight operations.
Image credit: X-ray: NASA/CXC/UA/J.Irwin et al; Optical: NASA/STScI
For more Chandra images, multimedia and related materials, visit:
Last Updated: Nov. 23, 2015
Editor: Lee Mohon
Tags:  Chandra X-Ray Observatory, Galaxies, Universe,
Guillermo Gonzalo Sánchez Achutegui
Inscríbete en el Foro del blog y participa : A Vuelo De Un Quinde - El Foro!

NASA : Fingerprints of Water on the Sand .- Las huellas dactilares de agua en la arena

Hola amigos: A VUELO DE UN QUINDE EL BLOG.,  Kjell Lindgren, Astronauta de la NASA tomó esta fotografía el 11 de noviembre, 2015, desde la Estación Espacial Internacional, y lo compartió con sus seguidores en las redes sociales. Lindgren escribió: "Las delicadas huellas de agua impresas en la arena. El #StoryOfWater." El área fotografiada se encuentra en Omán, a unos 20 km al oeste-noroeste de Hamra Al Drooa.
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Water tracks on sandy ground with straight lines of roadways crossing the terrain
NASA astronaut Kjell Lindgren took this photograph on Nov. 11, 2015 from the International Space Station, and shared it with his followers on social media. Lindgren wrote, "The delicate fingerprints of water imprinted on the sand. The #StoryOfWater." The area photographed is located in Oman, approximately 20 km to the west-northwest of Hamra Al Drooa.
One of the ways research on the space station benefits life on Earth is by supporting water purification efforts worldwide. Drinkable water is vital for human survival. Unfortunately, many people around the world lack access to clean water. Using technology developed for the space station, at-risk areas can gain access to advanced water filtration and purification systems, making a life-saving difference in these communities. Joint collaborations between aid organizations and NASA technology show just how effectively space research can adapt to contribute answers to global problems. The commercialization of this station-related technology has provided aid and disaster relief for communities worldwide.
Image Credit: NASA
Last Updated: Nov. 17, 2015
Editor: Sarah Loff