Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon particles in the fluid. Black oil is not automatically a sign of a problem ...

A nanomechanical sensor once limited to the lab can now detect ultrafine airborne particles, closing a key gap in pollution monitoring and climate science. (Nanowerk News) “Measure what can be ...

A nanomechanical sensor once confined to a physics lab is now detecting harmful nanoparticles, even in the Arctic. The NEMILIES project has transformed a risky idea into an award-winning scientific ...

The NAACP formally asked a federal judge to protect voter information seized by the FBI from an election warehouse in Atlanta on Sunday. The NAACP and other organizations say the documents contain ...

Many are asking why guns were returned to the home of someone with a history of mental illness, whom police apprehended multiple times as a potential threat to themselves or others You can save this ...

Add Yahoo as a preferred source to see more of our stories on Google. Rebecca Brown and her dad, August Terrence “Terry” Rolin, are among the plaintiffs on class-action lawsuit against the TSA and DEA ...

[This piece by Manoush Zomorodi also appeared in the Body Electric newsletter. Sign up here for a biweekly guide to move more and doomscroll less.] It's the season of "inside." The kind of weather ...

A housing dispute involving a prominent Russian athlete has sparked debate over state support programs. Officials say the decision followed existing rules, but the athlete insists she was left in the ...

SAN DIEGO — Homeland Security Secretary Kristi Noem was surrounded by what she described as "1.7 billion lethal doses of illegal narcotics" when she said 188,218 pounds of illegal drugs have been ...

The seizure of the trawler, which Japan said was sailing in its waters in the East China Sea, is likely to add to tensions between Tokyo and Beijing. By Javier C. Hernández Reporting from Tokyo The ...

ATLANTA (AP) — Officials in Georgia's Fulton County said Wednesday they have asked a federal court to order the FBI to return ballots and other documents from the 2020 election that it seized last ...

FORT LUPTON, Colo. — The state of Colorado has seized a Fort Lupton car dealership after investigators found dozens of vehicles were sold without proper titles, leaving customers unable to register or ...