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Monday, August 6, 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News

Car-size rover Curiosity lands on Mars: Two-year mission to investigate Red Planet begins

Posted: 05 Aug 2012 10:41 PM PDT

NASA's most advanced Mars rover Curiosity has landed on the Red Planet. The one-ton rover, hanging by ropes from a rocket backpack, touched down onto Mars at 1:31 a.m. EDT Monday (Aug. 6, 2012) to end a 36-week flight and begin a two-year investigation. The Mars Science Laboratory (MSL) spacecraft that carried Curiosity succeeded in every step of the most complex landing ever attempted on Mars, including the final severing of the bridle cords and flyaway maneuver of the rocket backpack.

Heart muscle cell grafts suppress arrhythmias after heart attacks in animal study

Posted: 05 Aug 2012 11:48 AM PDT

Researchers have made a major advance in efforts to regenerate damaged hearts. Grafts of human heart muscle cells reduced the incidence of irregular heart rhythms after heart attacks in animal studies. Grown from embryonic stem cells, the grafted cells couple electrically and contract in sync with the heart's own muscle. The results offer evidence that human heart muscle cell grafts meet physiological criteria for true heart regeneration.

Sequencing of malaria genomes reveals challenges, opportunities in battle against parasite

Posted: 05 Aug 2012 11:48 AM PDT

Genetic variability revealed in malaria genomes newly sequenced by two multi-national research teams points to new challenges in efforts to eradicate the parasite, but also offers a better picture of its genetic composition, providing an initial roadmap in the development of vaccines to combat malaria.
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