Guns

If you've watched even a single episode of CSI, you'll know how important it is to check suspects and crime scenes for gunshot residue (GSR). A new technique could make that task faster and easier than ever before, by causing GSR to glow green.

Researchers have finally investigated a widely held belief that men who are more dissatisfied with the size of their penis are more likely to own a gun. And the results are not what they expected.

​While most of us may just associate mistletoe with Christmas parties, the fact is that the parasitic plant can be a nuisance in the wild. That's why scientists are taking the offensive, with a system that shoots herbicide up into trees' high branches.​