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NASA’s Mars Curiosity Rover catches Flash images from ChemCam laser firing on Martian Rock

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Flashes appear on a baseball-size Martian rock in a series of images taken Saturday, July 12th by the Mars Hand Lens Imager (MAHLI) camera on the arm of NASA’s Curiosity Mars Rover. The flashes occurred while the rover’s Chemistry and Camera (ChemCam) instrument fired multiple laser shots to investigate the rock’s composition.

ChemCam’s laser has zapped more than 600 rock and soil targets on Mars since Curiosity landed in the planet’s Gale Crater in August 2012.

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American Heart Association says Young Hispanics often Obese, at higher risk for Heart Diseases

 

American Heart AssociationDallas, TX – Obesity is common among U.S. Hispanics  and is severe particularly among young Hispanics, according to research in the Journal of the American Heart Association (JAHA).

The first large-scale data on body mass index (BMI) and cardiovascular disease risk factors among U.S. Hispanic/Latino adult populations suggests that severe obesity may be associated with considerable excess risk for cardiovascular diseases.

Blood pressure cuff. (American Heart Association)

Blood pressure cuff. (American Heart Association)

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NASA’s Mars Reconnaissance Orbiter discovers large new Crater on Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Researchers have discovered on the Red Planet the largest fresh meteor-impact crater ever firmly documented with before-and-after images. The images were captured by NASA’s Mars Reconnaissance Orbiter.

The crater spans half the length of a football field and first appeared in March 2012. The impact that created it likely was preceded by an explosion in the Martian sky caused by intense friction between an incoming asteroid and the planet’s atmosphere.

This is the largest fresh impact crater anywhere ever clearly confirmed from before-and-after images. It is 159 feet across. (NASA/JPL-Caltech/Univ. of Arizona)

This is the largest fresh impact crater anywhere ever clearly confirmed from before-and-after images. It is 159 feet across. (NASA/JPL-Caltech/Univ. of Arizona)

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NASA’s Curiosity Mars rover captures first ever photo of Asteroids from the surface of Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A new image from NASA’s Curiosity Mars rover is the first ever from the surface of Mars to show an asteroid, and it shows two: Ceres and Vesta.

These two — the largest and third-largest bodies in the asteroid belt between Mars and Jupiter — are the destinations of NASA’s Dawn mission. Dawn orbited Vesta in 2011 and 2012, and is on its way to begin orbiting Ceres next year. Ceres is a dwarf planet, as well as an asteroid.

NASA's Curiosity Mars rover has caught the first image of asteroids taken from the surface of Mars. The image includes two asteroids, Ceres and Vesta. This version includes Mars' moon Deimos in a circular, exposure-adjusted inset and square insets at left from other observations the same night.

NASA’s Curiosity Mars rover has caught the first image of asteroids taken from the surface of Mars. The image includes two asteroids, Ceres and Vesta. This version includes Mars’ moon Deimos in a circular, exposure-adjusted inset and square insets at left from other observations the same night.

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NASA’s Mars Rover Curiosity to study Sandstones at next waypoint

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Variations in the stuff that cements grains together in sandstone have shaped the landscape surrounding NASA’s Curiosity Mars rover and could be a study topic at the mission’s next science waypoint.

On a journey with many months yet to go toward prime destinations on the lower slope of Mount Sharp, Curiosity is approaching a site called “the Kimberley.” Scientists on the team picked this location last year as a likely place to pause for investigation.

Sandstone layers with varying resistance to erosion are evident in this Martian scene recorded by the Mast Camera on NASA's Curiosity Mars rover on Feb. 25, 2014, about one-quarter mile (about 400 meters) from a planned waypoint called "the Kimberley." (NASA/JPL-Caltech/MSSS)

Sandstone layers with varying resistance to erosion are evident in this Martian scene recorded by the Mast Camera on NASA’s Curiosity Mars rover on Feb. 25, 2014, about one-quarter mile (about 400 meters) from a planned waypoint called “the Kimberley.” (NASA/JPL-Caltech/MSSS)

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American Heart Association says Stroke Patients fare better in Hospitals speeding care

 

American Heart AssociationSan Diego, CA – Hospitals that used key strategies, tools and approaches from the Target: Stroke initiative sped up treatment times, which was associated with fewer stroke patients having complications or dying, according to a science report presented at the American Stroke Association’s International Stroke Conference 2014.

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American Stroke Association reports Blood Clot risk remains higher than normal for at least 12 weeks after Women deliver Babies

 

American Stroke Association - American Heart AssociationSan Diego, CAWomen’s blood clot risk remains elevated for at least 12 weeks after delivering a baby — twice as long as previously recognized, according to a large study presented at the American Stroke Association’s International Stroke Conference 2014.

The chance of a blood clot rises during pregnancy, when platelets and other blood-clotting factors increase. «Read the rest of this article»

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American Stroke Association says common Infections may increase risk for Memory Decline

 

American Stroke Association - American Heart AssociationSan Diego, CA – Exposure to common infections is linked to memory and brain function — even if the infections never made you ill, according to research presented at the American Stroke Association’s International Stroke Conference 2014.

Researchers found an index of antibody levels caused by exposure to Chlamydia pneumoniae, Helicobacter pylori, cytomegalovirus, and herpes simplex viruses 1 and 2 was associated with worse cognitive performance, including memory, speed of mental processing, abstract thinking, planning and reasoning ability. «Read the rest of this article»

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American Stroke Association says Moderate Exercise cuts Women’s Stroke Risk

 

American Stroke Association - American Heart AssociationSan Diego, CA – Women don’t need to run marathons or do intense aerobics to reduce their stroke risk. Moderate-intensity exercise — such as brisk walking or playing tennis — may do the trick, according to research presented at the American Stroke Association’s International Stroke Conference 2014.

The study found that moderate exercise also helps offset the increased stroke risk seen with postmenopausal women taking menopausal hormones, but not completely. «Read the rest of this article»

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American Stroke Association says there’s an alternative test better at finding potentially dangerous holes in the Heart

 

American Stroke Association - American Heart AssociationSan Diego, CA – An alternative test for measuring blood flow to the brain detected a potentially dangerous hole within the heart of some patients with an unexplained stroke better than a standard test, according to late-breaking science presented at the American Stroke Association’s International Stroke Conference 2014.

In addition, the transcranial Doppler test could differentiate the risk of future stroke or transient ischemic attack as related to the severity of the defect. «Read the rest of this article»

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