Another record high temperature in Chicago. How long will spring in February last? 

For the fifth year, members of Shedd Aquarium's Animal Response Team participated in a rescue mission of endangered penguin chicks in South Africa. Learn about their work.

Last fall, 21st century technology was used to tell the story of a 20th century tragedy: the Eastland Disaster. The team behind that project is set to launch a second installment of its augmented reality app. Learn more.

Neil Shubin has traveled the world in search of fossils to help better understand evolutionary origins. He tells us about his latest research on Earth’s southernmost continent.

The Illinois Emergency Management Agency warns Southern Illinoisans to be prepared for earthquakes. Just how great is the risk?

A bright meteor streaked across skies in Chicago and the Midwest at about 1:30 a.m. Monday. 

With an expected audience of officials appointed by President Donald Trump, the Heartland Institute hopes to reset U.S. climate policy, which is also the theme for its upcoming International Conference on Climate Change.

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. 

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.

A Smithsonian ornithologist says outdoor cats are devastating bird populations.

Cook County is more than halfway through a multiyear project that aims to make solar energy more affordable for residents.

On Thursday, the Illinois Environmental Council released its Environmental Scorecard, highlighting the top pieces of environmental legislation (and legislators) from 2016. 

The increasing frequency of tornadoes, and a new study on gun violence. Those stories more from the world of science with Rabiah Mayas.

Geoffrey Baer solves the mystery of a viewer’s “vague memory” from the 1940s, revisits an exhibit at the Century of Progress and opens the door to the Evanston History Center.

The decadeslong fight to clean up the Chicago River took a step forward last week with the resolution of two lawsuits targeting phosphorous discharge that has polluted waters from Chicago to the Gulf of Mexico.

Dozens of Chicago activists met last week to plan a defense of environmental policies that appear vulnerable under the administration of President Donald Trump.