The governor issues a statewide indoor mask mandate. Why COVID-19 breakthrough cases are being undercounted. Live from Garfield Ridge. And new research on what brain functions improve with age.

As the delta variant continues to drive a spike in COVID-19 cases, two recent reports outline the challenges of tracking so-called breakthrough cases in fully vaccinated people. We discuss the importance — and limitations — of disease surveillance.

Palos Preserves has been named an Urban Night Sky Place by the International Dark-Sky Association. The site emits nearly 1,000 times less light than downtown Chicago, with four times as many stars visible in the night sky than can be seen in the city.

A pair of bills signed by Gov. J.B. Pritzker provides not only legal counsel, but also public information campaigns so immigrants and refugees will know their rights.

On Chicago’s Southwest Side, Garfield Ridge is home to Midway Airport. It has a significant first responder population and many senior citizens. We talked with community leaders about the pandemic’s continuing health and economic impact — and one organization using wrestling to empower youth.

Babbling baby bats. Simulated rats. The impressive memory of cuttlefish. And why, counter to popular belief, some key mental abilities appear to actually improve with aging. University of Chicago paleontologist Neil Shubin returns to help us understand some of the latest science stories making headlines.

Gov. J.B. Pritzker may soon make the rare move of vetoing a bill that passed both houses of the Democratic-controlled General Assembly — unanimously. The bill has to do with how private ambulance companies are reimbursed when they transport Medicaid patients. 

A shortage of paramedics. What’s holding up a Chicago casino? An exclusive look at the city’s first and only national monument. Hedy Weiss is back. And pajamas on pit bulls.

A Humboldt Park woman is on a mission to break the stigma surrounding pit bulls — one colorful outfit at a time. How Erin Crowley’s line of dog apparel aims to help change people’s preconceived notions about the breed. 

The mandate is likely to trigger a legal battle with the Fraternal Order of Police, Lodge 7, which represents the city’s 12,000 rank-and-file officers.

The annual event that puts the spotlight on Chicago dance companies is free and open to the public this year with a concert at the Jay Pritzker Pavilion in Millennium Park.

Six years ago President Barack Obama named the Pullman neighborhood a national monument. On Labor Day weekend, a new visitor center in the century-old clock tower will finally open. Geoffrey Baer visited Pullman to get an exclusive first look.

This should have been the week when the long-awaited Chicago casino project finally got up and running. Monday was the initial deadline to submit proposals to develop the much vaunted project — but after few bidders appeared interested — the city pushed back the deadline to the end of October.