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A young scientist decided that one way to get girls into science would be by painting neurons and parasitic worms on her nails.

Kamala Harris will make history as the first woman of color on a major party presidential ticket after a selection process in which Joe Biden faced pressure to choose a Black woman.

When it comes to the presidential election, Arizona is considered a toss-up state with Biden slightly ahead in many polls. We hear from voters.

The Justice Department's proposal would hold Facebook and Twitter more accountable for users' posts. One critic says the Trump administration is "trying to work the refs ahead of the election."

"Donald Trump has made my job a hell of a lot harder since he started talking about Portland," says Multnomah County Sheriff Mike Reese. The president claimed that the "Portland sheriff" supports him.

For the first time in 20 years, Gary Finch is not on the ballot in the 126th assembly district. The Republican who represented the western suburbs of…

"The epidemic is doubling roughly every seven days," the U.K.'s top science adviser says, warning of a dangerously high rate of new coronavirus cases.

Extreme fires are more likely with climate change, and they're making it harder for some tree species to regenerate. Ecologists say this could transform large areas of Western forest into grassland.

Structures inside healthy brain cells nimbly move from one state to the next to perform different functions. But in certain degenerative brain diseases, scientists now think, that process gets stuck.

Experts say a bit of extra drinking isn't a problem for many people, but they recommend watching out for specific behaviors that signal addiction.