It's one of NASA's most daring undertakings. The Curiosity rover is set to land on Mars on August 6, and the lead scientist of NASA's Mars Exploration Program is here to tell us about the mission, including the so-called "seven minutes of terror."

Chicago is on pace to break the record for the most 90-degree days. What is causing the prolonged heat wave, and is this a sign for what's to come in future summers? A meteorologist from the National Weather Service joins us.

A new study finds Chicago has severely underinvested in expressways and urges the region to embark on an ambitious long-term road-building plan. The Reason Foundation has proposed a $52 billion plan to decrease congestion in Chicago and increase mobility.

We show you how striking a balance between economics and the environment could help prevent an Asian carp invasion.

We meet the Chicago taxi driver who's become a Twitter celebrity as he tries to improve the image of cabbies.

We have your reaction to a proposed new coal plant on the South Side in tonight's Viewer Mail.

A trip to the beginning of time and back. That's what visitors to the Adler Planetarium will experience in a new, interactive history of the universe. We take you inside this incredible voyage.

What can be learned about eating disorders, anxiety and STDs -- from animals? The authors of a new book share the surprising parallels between humans and other species.

Chicago's final two coal plants are closing. So why did the state quietly pass a bill allowing a new coal plant to open in the city? Paris Schutz has the story.

Why are there so few lefties? How can we help our children become better in math? And what's all the hype about the Higgs boson particle? Our science guy, Neil Shubin, joins us to help answer these questions and more in tonight's Scientific Chicago.

In Chicago, we see both extreme cold and extreme heat. We asked which one you prefer. We read what some of you had to say in Viewer Mail.

Joel Weisman and his panel of local weather experts discuss Chicago's 2012 weather trends.

Today, the earth is at its farthest point away from the sun that it will be all year. But it sure doesn't feel like it. What can you do to stay safe during the heat wave? City officials and a doctor are here to give some potentially life-saving advice.

Physicists at the largest particle accelerator in the world are set to announce their findings on the Higgs particle on Wednesday. Fermilab's Rob Roser joins us to discuss Fermilab's own results and what to expect tomorrow.

Rain levels are extremely low for this time of year. Ash-har Quraishi talks with Tom Skilling about how severe the Illinois drought is, and what to do about it.

A supercomputer at Argonne National Laboratory, code-named Mira, is the third fastest in the world, according to new rankings. We speak with the scientist in charge.