More than 200 union members filled the fifth floor at City Hall, taking seats on the floor to grade papers, plan class assignments and hear “lessons” on school revenue, clinician services and the protection of immigrant students.

The landmark designation process started Thursday for the 110,000-square-foot S. Michigan Avenue building designed by black architect John Warren Moutoussamy.

Is rhetoric edging us closer to doomsday? Last week, the Doomsday Clock edged 30 seconds closer to midnight, putting the world two and a half symbolic minutes away from global annihilation. 

Negotiations are underway between the city and United and American Airlines over a new gate lease agreement that could determine O’Hare’s future development for a generation.

A major, Chicago-centric concert this weekend showcases the city’s many voices.

We remember Rabbi Herman Schaalman, a Holocaust survivor and legendary interfaith leader who late in life gave up his belief in God.

A studio performance by classical pianist Jonathan Biss.

When Chicago barber Fred Luster created a new product for his customers in 1957, he couldn’t have known what lay ahead. A look at the history of Luster Products.

Viewers weigh in on President Donald Trump’s executive order on immigration and refugees.

Watch the Feb. 2, 2017 full episode of "Chicago Tonight."

Siku the polar bear wants a floating stone. Bella the baby guerilla wants carrots. The holiday season has passed, but Chicago zoo animals are still hoping for gifts.

The actor and activist hosts a screening and discussion of the film “Star Trek II: The Wrath of Khan” this weekend. We caught up with him to talk “Trek,” Trump and more.

An after-hours museum party, ice cream for breakfast and Super Bowl parties usher in the weekend. Here are 10 things to do in and around Chicago. 

Chicago Teachers Union officials issued a vote of no confidence Wednesday night on Chicago Public Schools CEO Forrest Claypool after claiming he has worked to “dismantle and sabotage” CPS.

Another commission, another report on school funding reform. Will lawmakers’ recommendations create a new formula?