Today's Top Science News

Tuesday, March 16, 2010

UV Exposure Has Increased Over the Last 30 Years, but Stabilized Since the Mid-1990s

NASA scientists analyzing 30 years of satellite data have found that the amount of ultraviolet radiation reaching Earth's surface has increased markedly over the ...  > full story
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Golden Bullet for Cancer? Nanoparticles Provide Targeted Version of Photothermal Therapy for Cancer

Nanocages that efficiently convert light to heat are the basis for a targeted form of phototherapy that would destroy tumors without making cancer patients sick. ...  > full story
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Super Supernova: White Dwarf Star System Exceeds Mass Limit

Astronomers have, for the first time, measured the mass of a type of supernova thought to belong to a unique subclass and confirmed that it surpasses what was believed to be an upper mass ...  > full story
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3-D Cell Culture: Making Cells Feel Right at Home, Suspended in Magnetic Fields

New research takes aim at a biological icon: the two-dimensional petri dish. Scientists have found a simple way to suspend cells in magnetic fields so they grow into ...  > full story
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New Hand Bacteria Study Holds Promise for Forensics Identification

Forensic scientists may soon have a valuable new item in their toolkits -- a way to identify individuals using unique, telltale types of hand bacteria left behind on objects like keyboards and ...  > full story
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One Gene Lost = One Limb Regained? Scientists Demonstrate Mammalian Regeneration Through a Single Gene Deletion

The absence of a single gene, called p21, confers a healing potential in mice long thought to be reserved only for creatures like flatworms, sponges, and some ...  > full story
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Freshwater Polyp Hydra Genome Sequenced: Survey Finds Genes Linked to Huntington's, Alzheimer's

An international team of scientists have sequenced the genome of Hydra, a freshwater polyp that's been a staple of biological research for 300 years. ...  > full story
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When Did the First 'Modern' Human Beings Appear in the Iberian Peninsula?

New research has stirred up scientific debate about the appearance of the first "modern" human beings on the Iberian Peninsula and their possible bearing on the extinction of the ...  > full story
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Fossil of Early Terrestrial Amphibian Discovered

Researchers have described a new carnivorous amphibian from western Pennsylvania. The 300-million-year-old remarkably preserved fossil is one of few amphibians displaying evidence of a land-based life history so early ...  > full story
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Unlocking the Opium Poppy's Biggest Secret: Genes That Make Codeine, Morphine

Researchers have discovered the unique genes that allow the opium poppy to make codeine and morphine, opening the door to alternate methods of producing these effective painkillers either ...  > full story
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