After Lurie Children’s Hospital of Chicago patients, families, staff and volunteers took part in a voting contest last week, the 10-month-old penguin previously known as Chick No. 23 is now called Diego.

Watch the April 25, 2016 full episode of "Chicago Tonight."

Newspaper giant Gannett makes a bid to take over the parent company of the Chicago Tribune. A look at what Gannett's offering, and whether it's likely to succeed.

Gov. Bruce Rauner approves emergency funding for higher education in Illinois. But is it enough to keep Chicago State University and others afloat? 

The long voyage of some migratory birds ends in Chicago. How photographer Art Fox is raising awareness of what's called "window kill" at the Peggy Notebaert Nature Museum.

The Field Museum recently captured some unusual animal portraits with motion-activated cameras in the Peruvian Amazon rain forest.

Palatine native Holly Morris talks about her new documentary "The Babushkas of Chernobyl," which profiles three grandmothers who chose to ignore government orders and return home to live out their lives near the site of the world's worst nuclear disaster.

Fill up your water bottle, grab a yoga mat and head to Millennium Park, where free summer workout classes begin in June. Get the full schedule.

Nearly 30 years after his death, the “People’s Mayor” Harold Washington is being honored with a daylong summit, and registration is filling up fast. Paula Thornton Greear with the Chicago Urban League says remembering Washington’s legacy is essential, especially given today’s political climate. 

The red-hot guitar player with a soulful voice recorded for Chicago’s Alligator Records, played on one of The Doors greatest hits – and once shot a computer that didn’t agree with him.

Joel Weisman and guests discuss the controversial and expensive new plan for the Lucas Museum and more top stories on this week's show.

The terms of the historic global pact were agreed upon by 195 countries on Dec. 12, 2015, at the United Nations Climate Change Conference in Paris, but Friday – Earth Day – marks the first day of the yearlong signing period.

The police superintendent and mayor announce big changes to Chicago Police Department practices and oversight. But did the much maligned Independent Police Review Authority make the cut?

Watch the April 21, 2016 full episode of "Chicago Tonight."