Heat and smoke from wildfires are spreading across the country Tuesday, impacting air quality and prompting heat alerts from Canada to the Gulf of Mexico.

The Georgia man accused of fatally shooting eight people at three Atlanta-area spas in March pleaded guilty to four of the killings in a Cherokee County courtroom on Tuesday.

In what many are calling the Vatican's "trial of the century," a Vatican court on Tuesday opened proceedings against Italian Cardinal Angelo Becciu, the Pope's former chief of staff, and nine other defendants charged with fraud and embezzlement, principally for their roles in a controversial…

The Justice Department formally declined to assert executive privilege for potential testimony of at least some witnesses related to the January 6 Capitol attack, a person briefed on the matter said.

The US Centers for Disease Control and Prevention is expected to recommend everyone in K-12 schools wear a mask, regardless of their vaccination status, as it updates its masking guidelines on Tuesday, according to an administration health official.

If you thought we were done seeing -- and hearing -- cicadas in the United States, think again!

A busy fire season in the US has charred more than 2.77 million acres this year, mostly in western states, with active wildfires accounting for 1.5 million acres burned.

Former US Sen. Mike Enzi has died following a serious bicycle accident last week, according to a statement posted on his official Twitter account. He was 77.

The NFL's Kansas City Chiefs won't be changing the team's nickname anytime soon, but are retiring their horse mascot named "Warpaint," according to organization president Mark Donovan.

Health care workers at Jacksonville's Baptist Medical Center in Florida are hearing panic, fear and regret from many of their patients as an increasing number are admitted for Covid-19 complications -- and as many need to be put on ventilators.

Former US Sen. Barbara Boxer of California was a victim of assault and theft Monday in the Jack London Square neighborhood of Oakland, her office said.

Celina Baez Sotomayor, the mother of Supreme Court Justice Sonia Sotomayor, died on Sunday at 94 of complications from cancer, according to a family friend.

The last remaining missing person from the Champlain Towers South building collapse in Surfside, Florida, was identified Monday, ending a month-long search and recovery operation.

Astronomers have discovered the largest known comet, and it's about a thousand times more massive than others.

Plagued by climate change-fueled drought and increasing demand for water, Lake Powell, the second largest reservoir in the United States, has fallen to its lowest level on record since it was first filled more than 50 years ago.

The House Select Committee investigating the January 6 attack will hear testimony Tuesday from four police officers who were on the front lines that day as rioters supporting then-President Donald Trump violently stormed the US Capitol in an attempt to stop lawmakers from certifying Presiden…

California will require all state employees and health care workers to provide proof of vaccination status or get regular testing amid a surge of cases from the highly contagious Delta variant, Gov. Gavin Newsom announced at a press conference Monday.

The city of St. Louis and St. Louis County reinstated an indoor mask mandate on Monday to try to stop the spread of Covid-19, even as Missouri's attorney general followed through on a threat to sue over the requirement.

New York City Mayor Bill de Blasio said Monday that he's expanding the city's Covid-19 mandate to require the entire municipal workforce to get vaccinated or start weekly testing by September 13.

President Joe Biden's administration for the first time Monday made vaccines mandatory for certain federal workers, a significant shift toward requiring shots as the country endures another surge in Covid-19 cases.

Cars stranded in streets turned to rivers. Bus passengers rescued by raft. Train stations submerged, sparking travel chaos.

The latest heat wave to grip the US is here, delivering triple-digit temperatures and heat indices across the country.

Four men have been charged in the fatal shooting of a 13-year-old girl in North Carolina, police said.

Provincetown, Massachusetts, has restored its indoor mask mandate after a cluster of Covid-19 cases followed the Fourth of July holiday.

As the Covid-19 pandemic swept the globe in early 2020, people around the world found themselves confined to their homes and limited to speaking to friends and loved ones via phone or video chat.

The White House has decided to maintain existing coronavirus travel restrictions amid surging cases triggered by the Delta variant, a White House official told CNN Monday.

Six-year-old Audrey Gard will head to first grade next week wearing a mask. It's a precaution her mom believes will help to minimize the chances of her getting coronavirus.

President Joe Biden's bipartisan infrastructure deal is in a perilous state with Republicans and Democrats remaining far apart on a range of outstanding issues after the latest round of furious talks, the clearest sign yet that one of the White House's top legislative priorities could collap…

A firefighter who was reported missing near Montana's border with Idaho has been found safe, authorities said.

Eight people are dead and several more were critically injured when authorities say a sand or dust storm caused visibility issues that led to a series of crashes involving 20 vehicles in Utah Sunday evening.

The US will continue airstrikes in support of Afghan forces fighting the Taliban, a top US general said Sunday.

Civil rights legend Bob Moses died at age 86, according to a statement from NAACP President Derrick Johnson.

An Atlanta university says it is clearing student account balances for spring 2020 through summer 2021 to help students continue their education through the Covid-19 pandemic.