Where did Earth's water come from? This ancient asteroid family may help us find out
The family is part of a larger asteroid that was smashed to pieces 130 million years ago.
from Space https://ift.tt/xpMkXTF
from Space https://ift.tt/xpMkXTF
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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