Smithsonian Magazine on MSN14h
Scientists Discover Traces of Salt Water and Building Blocks of Life in NASA’s Samples From the Asteroid BennuTwo new papers describe hints to a brine-filled environment on the 4.5-billion-year-old space rock and the presence of amino ...
SEM stands for scanning electron microscope. The SEM is a microscope that uses electrons ... special preparations must be done to the sample. All water must be removed from the samples because the ...
The trunk of each 'Christmas tree' (a transcription unit) represents a DNA molecule; the tree branches (granular strings attached to the DNA) are RNA molecules that have been transcribed from the ...
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