Searching for your ancestors used to be expensive and time-consuming. Now, it's easy and more popular than ever. We learn more about modern-day genealogy.

The Civil War as seen through art and images in Chicago collections. We have the story about a new online effort to illustrate the great conflict.

A tiny, fingernail-sized organism that some are calling the scourge of the Great Lakes is fundamentally altering marine life. Ash-har Quraishi reports on a devastating invasive species that is causing ripples all the way up the food chain.

What do you think about using taxpayer money to help renovate Wrigley Field? We have your thoughts in tonight's Viewer Mail.

There's another change to the mayor's speed camera ordinance. We have the latest as aldermen consider the bill.

The mayor's $1.7 billion infrastructure trust will come to a vote April 18. With some aldermen signaling they may withhold their vote unless they see changes in the legislation, Chicago Tonight polled the City Council on how they would vote on the infrastructure trust ordinance as currently written.

Some aldermen have a lot of questions about Mayor Emanuel's proposed infrastructure trust. 

Nine aldermen now say they will vote against the ordinance unless changes are made.

Could FDA-style regulation of the finance world prevent future economic crises?

Their bank here may have cost taxpayers nearly $400 million, but one local family is still lending -- in New York.

Chicago blues legend Buddy Guy talks about his career and his new autobiography. Jeffrey Brown from the PBS Newshour reports.

You know the old saying: "No one wants to see how the sausage gets made?" Well, get ready. We show you how to make sausages at home.

Mayor Emanuel gives some ground on longer school days, after complaints from some teachers and parents that the original proposal was too long. But does today's action settle the dispute over the future of Chicago Public Schools? Paris Schutz reports.

It's called the Buffett Rule: a proposal to raise taxes on millionaires. On Tuesday, President Obama officially injected it into the presidential campaign. Is it a matter of fairness or is it class warfare? We take a look.

We go inside the brains of bees. Our science guy, Neil Shubin, joins us to talk about bee personalities, the impact of music training on aging, and more news in Scientific Chicago.