Stem Cell Injections Give Mice Mighty Muscles

Posted on Categories Discover Magazine

Injecting stem cells into injured mouse muscle not only helped the muscle heal, but gave the mice enhanced muscle mass for years to come. The study, published in Science Translational Medicine, used skeletal muscle stem cells from young donor mice and injected them into injured muscles of mature mice. Researchers figured that the stem cells would be able to create new muscle cells in the recipient mouse, but the question was: could these new cells be incorporated into the existing muscle on an a ...read more

NASA Woes: Hubble's Replacement Behind Schedule; Shuttle Cracks Found

Posted on Categories Discover Magazine

Hubble’s successor will be late, and over-budget. So concluded a NASA panel this week that investigate the James Webb Space Telescope, NASA’s next big thing, intended to survey the skies in infrared light with its 18-segment mirror. The word all along has been that James Webb would launch in 2014 at a cost of $5 billion, but the independent review (pdf) concluded that the earliest possible launch would be September 2015, and at a cost of more like $6.5 billion. The report raised fear ...read more

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