BP says all the oil  from last week's spill is now cleaned up. But activists worry about the possibility of future spills. Elizabeth Brackett has the latest details. View a graphic on the Lake Michigan oil spill compared to the 10 biggest U.S. oil spills by volume.

The Chicago Botanic Garden’s Eliza Fournier joins us to talk about spring gardening. She brings tips and reminders on how to clear out the damage from a long Chicago winter and prepare for bountiful seasons ahead.

Brutal winter conditions this year devastated the bird population in the Midwest region. The Field Museum has collected roughly 60 specimens but many more have perished as a result of starvation from limited open water on Lake Michigan. We speak with Field Museum research assistant and ornithologist Josh Engel about the phenomenon. Read an article and view a slideshow.

The brutal winter has led to skyrocketing pothole claims in the city. What can residents do? And when will they be filled? Paris Schutz has the story. View the city's Pothole Tracker map to see where potholes have been patched in the last seven days.

Chicago will be the new site for a manufacturing-technology research lab that will focus on turning academic research into profitable, job creating projects in the Midwest. But how much is this costing and will the benefits meet expectations? We discuss the issue. Read an article.

A flood watch and high wind warning is in effect for the Chicago area as temperatures are expected to reach 50 degrees today. WGN's Chief Meteorologist Tom Skilling has the latest details. View the city's Pothole Tracker map.

Wish you could get decision-making down to a science? University of Illinois professor Ali Abbas is a leader in the decision analysis field and has created a social website that breaks down theory and practice for its users to make quality life choices. He joins us. Read an interview.

We talk with Former Secretary of Energy Steven Chu about climate change, fracking and the future of energy policy. Watch a web extra, extended interview with Chu.

WGN's Chief Meteorologist Tom Skilling gives us the latest news on the snow and when our weather woes might end. Send us your severe weather photos here and we'll use them in our online slideshow.

The world’s largest scientific society, American Association for the Advancement of Science, held its annual conference in Chicago this past weekend. Rabiah Mayas, Director of Science and Integrated Strategies at the Museum of Science and Industry, joins us to talk about some of the breaking news in science discussed at the conference.

University of Chicago cancer specialists make strides in curing metastatic cancers. Elizabeth Brackett has the story.  

Chicago is growing as a tech hub but industry insiders say the old model of venture capitalists investing in startups needs a reworking. We talk with two major players of the city’s tech scene who tell us why Chicago needs a new mindset to move forward. View a slideshow and read an interview.

Rocks on Mars, a sleeping spacecraft, and how science can affect this year’s Super Bowl; Rabiah Mayas, Director of Science and Integrated Strategies at the Museum of Science and Industry, joins us with the latest top science news. Read an article.

We meet local scientist and entrepreneur Adam Khan to talk about his latest invention that he hopes will usher in a new diamond age of electronics that will make the silicon chip obsolete. Watch web extra videos.

The polar vortex made its unwelcome return today, causing delays and closings. Will tomorrow be a repeat? Paris Schutz has the story. Send us your severe weather photos here and we'll use them in our online slideshow.