An expert on gunshot residue told the Supreme Court that particles found on the hands of a defendant did not necessarily mean he had fired a gun. Tarah Helsel, a gunshot residue expert with the ...

The Supreme Court heard that particles characteristic of gunshot residue were discovered on the hands of a man charged with murder. Tarah Helsel, a GSR expert from Pennsylvania-based RJ Lee Group, ...

To comply, NASA has sought to sanitize Mars rovers at a threshold of no more than 300,000 bacterial spores on any surface.

Lead poisoning in children is still a concern. Find out how you can reduce your child's exposure to lead and why it's ...

However, humans carry plenty of microorganisms, and looking at what is collected outside the ISS will inform designs for ...

Astronauts are scheduled to venture outside the International Space Station to collect microbiological samples during crew ...

Flora The bacteria characteristic of a region or special environment. Fomite An inanimate object that may be contaminated with infectious organisms and serve in their transmission. Infection The ...

A large number of Sydney beaches reached levels 75 times above 'safe levels' of contamination, a water quality report by the NSW Government revealed. It found that 41 swimming destinations in ...

As least 38 people, including 26 foreign nationals, were taken to various hospitals in Istanbul after drinking contaminated alcohol. As many as 11 of those in hospitals have died in the last 24 ...

When they mixed biochar into contaminated soil at a former tree nursery, DDT uptake by earthworms in the soil was halved. This method may enable the growing of certain crops on land that is ...

This contamination is driven by both natural geochemical processes and human activities like agricultural and industrial practices, reports contributor Esha Lohia for Mongabay India. To understand ...

This recall is one of many that have recently been called over the risk of plastic contamination. The U.S. Department of Agriculture issued a public health alert on January 5 over concerns that ...