February's new moon makes this a great night to view the Winter Triangle
The moon will be completely dark tonight as it enters the new moon phase of its 29.5-day cycle.
from Space https://ift.tt/2bvC6JS
from Space https://ift.tt/2bvC6JS
New method to detect and visualize sperm cells recovered from forensic evidence
One of the most valuable forms of forensic evidence in cases of male-perpetrated sexual assault is the presence of semen, either in the form of stains left behind on items or on swabs collected from victims after an offense. To confirm that semen is present, suspected stains are examined under a microscope to see if any sperm cells are visible. from Phys.org - latest science and technology news stories https://ift.tt/2XBwacB
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