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A review of "mussel-inspired chemistry" points to promising ways we can learn from mussels about how to clean up water.

The Justice Department has mounted a legal challenge to block the effort, claiming such a site violates federal drug laws and would enable opioid users.

Top officials from 13 states are joining Philadelphia in urging a federal court to allow a site to open where people can inject illegal opioids under…

The Democratic senator and presidential hopeful is introducing a bill to prevent a transformation of the redistricting process that he says could give Republicans a political advantage.

Instagram is rolling out a feature that will notify users when their comments may contain harmful or offensive content, then give them the opportunity to undo the posts before other users see them.

Sexual assault is still a highly stigmatized form of trauma, and that can complicate recovery for years, psychologists find. PTSD, depression and anxiety aren't unusual, but treatment can help.

When medical bioethicist Travis Rieder tried to taper off pain medication after a roadway accident, he was disappointed by his doctors' reaction: "Everybody had a reason to send me to somebody else."

The move signals that Iran is losing patience with the 2015 agreement after the U.S. blocked the economic relief promised.

In an East Room event that played like a campaign rally, President Trump touted his push for clean air and "crystal clear" water. He made no mention of climate change, a growing concern for voters.

Districts are supposed to tell the government how often students are held or detained. But a new report says those numbers are so inaccurate, there's no way of knowing the prevalence of these methods.