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Posts Tagged ‘science’

Jupiter Impact of Sept. 10, 2012

September 13, 2012 Leave a comment

Explosion on Jupiter by George Hall: Close-Up

Explosion on Jupiter by George Hall: Close-UpCredit: George Hall/George's Astrophotography

This image shows a close-up of the bright impact flash of an asteroid or comet slamming into Jupiter on Sept. 10, 2012. The image is a still from a video recorded by amateur astronomer George Hall of Dallas, Texas.

Location of Jupiter Impact of Sept. 12, 2012

Location of Jupiter Impact of Sept. 12, 2012Credit: Pete Lawrence/DigitalSky.org.uk.

This graphic of Jupiter by UK astronomer Pete Lawrence shows the location of the Jupiter impact region from Sept. 12, 2012, as seen through an inverting astronomical telescope. The impact site is located at longitude system II 335, latitude +12..

Read more: http://www.space.com/17543-jupiter-impact-explosion-pictures-amateur-astronomers.html

ATLAS and CMS publish observations of a new particle in the search for the Higgs boson

September 12, 2012 Leave a comment

10 September 2012

The ATLAS and CMS experiments at CERN today published observations of a new particle in the search for the Higgs boson in the journal Physics Letters B.

The papers: “Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC” and “Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC” are freely available online on ScienceDirect.

“These papers present the first observations of a new particle discovered by two big experiments at the Large Hadron Collider (LHC) in the search for the Standard Model Higgs boson which has spanned many decades and has involved many experiments,” says CMS spokesperson Joe Incandela. “They are the most important papers to come from the LHC so far and the findings are key to the field of particle physics. We are very pleased to see them published in Physics Letters B, accessible to all who may want to read them.”

Read more: http://public.web.cern.ch/public/

Magnificent CME Erupts on the Sun with Earth to Scale

September 10, 2012 Leave a comment

photo

On August 31, 2012 a long filament of solar material that had been hovering in the sun’s atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled at over 900 miles per second. The CME did not travel directly toward Earth, but did connect with Earth’s magnetic environment, or magnetosphere, causing aurora to appear on the night of Monday, September 3.

The image above includes an image of Earth to show the size of the CME compared to the size of Earth.

Credit: NASA/GSFC/SDO

Enough Wind to Power Global Energy Demand: New Research Examines Limits, Climate Consequences

September 10, 2012 Leave a comment

ScienceDaily (Sep. 9, 2012) — There is enough energy available in winds to meet all of the world’s demand. Atmospheric turbines that convert steadier and faster high-altitude winds into energy could generate even more power than ground- and ocean-based units. New research from Carnegie’s Ken Caldeira examines the limits of the amount of power that could be harvested from winds, as well as the effects high-altitude wind power could have on the climate as a whole.

There is enough energy available in winds to meet all of the world’s demand, according to new research. Atmospheric turbines that convert steadier and faster high-altitude winds into energy could generate even more power than ground- and ocean-based units. (Credit: © Thorsten Schier / Fotolia)
 

Their work is published September 9 by Nature Climate Change.

Led by Kate Marvel of Lawrence Livermore National Laboratory, who began this research at Carnegie, the team used models to quantify the amount of power that could be generated from both surface and atmospheric winds. Surface winds were defined as those that can be accessed by turbines supported by towers on land or rising out of the sea. High-altitude winds were defined as those that can be accessed by technology merging turbines and kites. The study looked only at the geophysical limitations of these techniques, not technical or economic factors.

Read  more: http://www.sciencedaily.com/releases/2012/09/120909150446.htm

Cannabinoids, like those found in marijuana, occur naturally in human breast milk

September 9, 2012 Leave a comment

Friday, July 20, 2012 by: Jonathan Benson

Cannabinoids are produced on the flowers of the female plant of Cannabis sativa in tiny hair-like structures called trichomes, the plant’s own “chemical factories.” (Credit: Jon Page (UofS/NRC), Klaus Adler (IPK-Gatersleben, Germany))

(NaturalNews) Woven into the fabric of the human body is an intricate system of proteins known as cannabinoid receptors that are specifically designed to process cannabinoids such as tetrahydrocannabinol (THC), one of the primary active components of marijuana. And it turns out, based on the findings of several major scientific studies, that human breast milk naturally contains many of the same cannabinoids found in marijuana, which are actually extremely vital for proper human development.

Cell membranes in the body are naturally equipped with these cannabinoid receptors which, when activated by cannabinoids and various other nutritive substances, protect cells against viruses, harmful bacteria, cancer, and other malignancies. And human breast milk is an abundant source of endocannabinoids, a specific type of neuromodulatory lipid that basically teaches a newborn child how to eat by stimulating the suckling process.

If it were not for these cannabinoids in breast milk, newborn children would not know how to eat, nor would they necessarily have the desire to eat, which could result in severe malnourishment and even death. Believe it or not, the process is similar to how adult individuals who smoke pot get the “munchies,” as newborn children who are breastfed naturally receive doses of cannabinoids that trigger hunger and promote growth and development.

Learn more: http://www.naturalnews.com/036526_cannabinoids_breast_milk_THC.html#ixzz260Xfks5i

Stunning Mars Photo Shows Curiosity Rover’s Tracks from Space

September 7, 2012 1 comment

Mars rover Curiosity's tracks on Mars seen from space in this image released Sept. 6, 2012. 
Tracks from the first drives of NASA’s Mars rover Curiosity are visible in this image captured by the Mars Reconnaissance Orbiter. The rover is seen where the tracks end. The image’s color has been enhanced to show the surface details better. Image released Sept. 6, 2012.
CREDIT: NASA/JPL-Caltech/Univ. of Arizona

  

NASA’s newest Mars rover Curiosity is taking its first tentative drives across the Martian surface and leaving tracks that have been spotted all the way from space in a spectacular photo snapped by an orbiting spacecraft. 

The newview of Curiosity’s tracks from space was captured by NASA’s Mars Reconnaissance Orbiter and released today (Sept. 6). It shows the rover as a bright, boxy vehicle at the end of two tracks that create a single zig-zag pattern in the Martian surface. 

Read more: http://www.space.com/17485-amazing-mars-photos-curiosity-rover-space.html

Saturn and Its Largest Moon Reflect Their True Colors

September 3, 2012 Leave a comment

ScienceDaily (Aug. 29, 2012) — Posing for portraits for NASA’s Cassini spacecraft, Saturn and its largest moon, Titan, show spectacular colors in a quartet of images being released today. One image captures the changing hues of Saturn’s northern and southern hemispheres as they pass from one season to the next.

Colorful Colossuses and Changing Hues: A giant of a moon appears before a giant of a planet undergoing seasonal changes in this natural color view of Titan and Saturn from NASA’s Cassini spacecraft. (Credit: NASA/JPL-Caltech/SSI)
 
 

A wide-angle view in today’s package captures Titan passing in front of Saturn, as well as the planet’s changing colors. Upon Cassini’s arrival at Saturn eight years ago, Saturn’s northern winter hemisphere was an azure blue. Now that winter is encroaching on the planet’s southern hemisphere and summer on the north, the color scheme is reversing: blue is tinting the southern atmosphere and is fading from the north.

The other three images depict the newly discovered south polar vortex in the atmosphere of Titan, reported recently by Cassini scientists. Cassini’s visible-light cameras have seen a concentration of yellowish haze in the detached haze layer at the south pole of Titan since at least March 27. Cassini’s visual and infrared mapping spectrometer spotted the massing of clouds around the south pole as early as May 22 in infrared wavelengths. After a June 27 flyby of the moon, Cassini released a dramatic image and movie showing the vortex rotating faster than the moon’s rotation period. The four images being released today were acquired in May, June and July of 2012.

Read more: http://www.sciencedaily.com/releases/2012/08/120829191639.htm

 

WISE survey uncovers millions of black holes


 

WISE survey uncovers millions of black holes

 
 

 

 

 

 

 

 

 

 

With its all-sky infrared survey, NASA’s Wide-field Infrared Survey Explorer, or WISE, has identified millions of quasar candidates. Image credit: NASA/JPL-Caltech/UCLA

(Phys.org)—NASA’s Wide-field Infrared Survey Explorer (WISE) mission has led to a bonanza of newfound supermassive black holes and extreme galaxies called hot DOGs, or dust-obscured galaxies.

Images from the telescope have revealed millions of dusty black hole candidates across the universe and about 1,000 even dustier objects thought to be among the brightest ever found. These powerful galaxies, which burn brightly with infrared light, are nicknamed .

“WISE has exposed a menagerie of hidden objects,” said Hashima Hasan, WISE program scientist at NASA Headquarters in Washington. “We’ve found an asteroid dancing ahead of Earth in its orbit, the coldest star-like orbs known and now, supermassive black holes and galaxies hiding behind cloaks of dust.”

WISE scanned the whole sky twice in infrared light, completing its survey in early 2011. Like night-vision goggles probing the dark, the telescope captured millions of images of the sky. All the data from the mission have been released publicly, allowing astronomers to dig in and make .

Read more: http://phys.org/news/2012-08-wise-survey-uncovers-millions-black.html

 

NASA’s Kepler Discovers Multiple Planets Orbiting a Pair of Stars


ScienceDaily (Aug. 28, 2012) — Coming less than a year after the announcement of the first circumbinary planet, Kepler-16b, NASA’s Kepler mission has discovered multiple transiting planets orbiting two suns for the first time. This system, known as a circumbinary planetary system, is 4,900 light-years from Earth in the constellation Cygnus.

Orbiting in the Habitable Zone of Two Suns: This diagram compares our own solar system to Kepler-47, a double-star system containing two planets, one orbiting in the so-called “habitable zone.” (Credit: NASA/JPL-Caltech/T. Pyle)
 

This discovery proves that more than one planet can form and persist in the stressful realm of a binary star and demonstrates the diversity of planetary systems in our galaxy.

Astronomers detected two planets in the Kepler-47 system, a pair of orbiting stars that eclipse each other every 7.5 days from our vantage point on Earth. One star is similar to the sun in size, but only 84 percent as bright. The second star is diminutive, measuring only one-third the size of the sun and less than 1 percent as bright.

Read more: http://www.sciencedaily.com/releases/2012/08/120828190127.htm

NASA Rover Returns Voice, Telephoto Views From Mars


August 28, 2012

Base of Mount Sharp A chapter of the layered geological history of Mars is laid bare in this postcard from NASA’s Curiosity rover. The image shows the base of Mount Sharp, the rover’s eventual science destination. Image credit: NASA/JPL-Caltech/MSSS

PASADENA, Calif. — NASA’s Mars Curiosity has debuted the first recorded human voice that traveled from Earth to another planet and back.

In spoken words radioed to the rover on Mars and back to NASA’s Deep Space Network (DSN) on Earth, NASA Administrator Charles Bolden noted the difficulty of landing a rover on Mars, congratulated NASA employees and the agency’s commercial and government partners on the successful landing of Curiosity earlier this month, and said curiosity is what drives humans to explore.

“The knowledge we hope to gain from our observation and analysis of Gale Crater will tell us much about the possibility of life on Mars as well as the past and future possibilities for our own planet. Curiosity will bring benefits to Earth and inspire a new generation of scientists and explorers, as it prepares the way for a human mission in the not too distant future,” Bolden said in the recorded message.

The voice playback was released along with new telephoto camera views of the varied Martian landscape during a news conference today at NASA’s Jet Propulsion Laboratory, Pasadena, Calif.

Read more: http://www.nasa.gov/mission_pages/msl/news/msl20120827.html

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