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An antigen test could be quick, and much simpler and cheaper than the PCR tests now used to spot people infected with the novel coronavirus. But some scientists worry about an antigen test's accuracy.

Many people are struggling with insomnia like never before. Specialists explain why these times put an extra strain on our ability to get needed rest — and what to do about it.

Jon Stewart and Ted Cruz are among other high-profile people who took to Twitter to comment on the stock story gripping the country.

The Senate has confirmed Merrick Garland to run the Justice Department. He's vowed to crack down on violent domestic extremists and reduce racial disparities in the justice system.

The strange tradition of a president pardoning a turkey before Thanksgiving happened again despite Trump holding few public events since losing — and not accepting — the 2020 election.

The trade association representing most major automakers is offering guidelines for manufacturers to advertise partially automated driving systems and make sure drivers are paying attention while using them.

Nathan Fletcher, the new chair of the San Diego County Board of Supervisors, has an ambitious agenda for the next year, emboldened by the board’s new Democratic majority.

This could be a crucial year for the powerful gene-editing technique CRISPR as researchers start testing it in patients to treat diseases such as cancer, blindness, and sickle cell disease.

Rep. Joyce Beatty, an Ohio Democrat, was demonstrating in Columbus when she got caught in an altercation between a protester and police.

Most of the victims were women of Asian descent. Authorities say it's too early to declare the attacks a hate crime – but advocates say there's a pattern that can't be ignored.