NASA may attempt 1st Mars helicopter flight on Monday
The first helicopter on Mars is once again ready to attempt an historic flight on another world.
from Space.com https://ift.tt/3dnTW1b
from Space.com https://ift.tt/3dnTW1b
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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