The omicron variant of COVID-19, which is believed to be highly transmissible, has been detected in Chicago, state and city health officials announced Tuesday. 

Every performer in this demanding show is multitalented and able to deftly shift from one character and mood to another in record time. 

Amazon’s cloud computing technology experienced major technical difficulties Tuesday, and brought half the world to a halt — or at least it felt that way to clients and consumers reliant on applications or services such as Alexa, Amazon Prime Video, Ring and Canvas.

A measure that would allow five of Chicago’s professional sports teams let fans place bets at their home arenas and during games stalled again Tuesday despite the support of Mayor Lori Lightfoot, amid concerns that it could kneecap long-delayed efforts to build a casino in Chicago.

Every year thousands of refugees seek asylum in the United States. Re:new is helping refugee women get back on their feet by teaching them how to become designers.

The trial, which began last week, is the culmination of a case that began on the frigid night of Jan. 29, 2019, when Jussie Smollett told police two men had attacked him, made anti-gay and racist comments, poured bleach on him and put a noose around his neck.

A call for those who haven’t received the COVID-19 vaccine to pay for the cost of their medical treatment. A billion dollar investment in affordable housing. And a second pandemic holiday season.

Even as the threat posed by the omicron variant of COVID-19 has yet to materialize in Chicago, the city is enduring a “very significant” surge of COVID-19 fueled by the holiday gatherings and indoor events, Chicago’s top doctor said Tuesday.

With new tools at their disposal, archeologists are revisiting a prehistoric site discovered 40 years ago at what’s now Midewin National Tallgrass Prairie. “What we have here is a real unique opportunity to talk about how humans used this landscape over the last 10,000 years,” one researcher said. 

A few dozen survivors of Pearl Harbor are expected to gather Tuesday at the site of the Japanese bombing to remember those killed in the attack that launched the U.S. into World War II. They will observe a moment of silence at 7:55 a.m., the same minute the attack began decades ago.

The U.S. District Court settlement modifies a previous consent decree that required BP Products North America Inc. to limit releases from the sprawling facility on the southwestern shore of Lake Michigan.

More than 1,000 homicides have been recorded in Cook County so far this year. In the suburbs, Harvey has seen the highest total of homicides with 30.

The rise in air travel is coming back down, thanks to the omicron variant’s rapid spread. Ann Dwyer has details on that story and more.

A growing number of states and countries are detecting the omicron variant, though it has yet to be identified in Illinois. Some say the mutation raises concerns about vaccine equity across the globe.

Former “Empire” actor Jussie Smollett denied Monday that he staged an anti-gay, racist attack on himself in downtown Chicago, testifying at his trial that “there was no hoax.”