Are we really alone in the universe? A new effort to search for extraterrestrial life is underway.

The daughter of former Vice President Al Gore is founder of the Center for Earth Ethics, which frames the environmental crisis in moral terms. She tells us about her work ahead of her appearance this week at a climate change forum in Chicago.

City Council approved a climate emergency resolution Wednesday, but no specific actions are on the horizon.

The latest selection for the citywide reading program is a Pulitzer Prize-winning book from New Yorker staff writer Elizabeth Kolbert, who joins us in discussion.

In the war against plastic pollution, Illinois legislators just announced a new battle plan that would tackle the problem from multiple angles.

The world’s richest man, Amazon founder Jeff Bezos, said in an Instagram post that he’ll start giving grants this summer to scientists, activists and nonprofits working to protect Earth.

From gorillas chomping on heart-shaped biscuits to sea lions digging into a gelatin cake, Brookfield Zoo’s Valentine’s Day celebration has warmed our hearts.             

A local scientist talks about his work to help capture the most detailed images ever of the sun’s bubbling surface.

Preliminary findings point to the endangered pangolin as a possible host of the novel coronavirus, sparking concerns that a panic could lead to killings of the animal. 

Local scientists use a powerful new tool to make fresh discoveries from moon dust first collected nearly 50 years ago.

It may not seem like it lately, but the sun does indeed still exist. And NASA is sending a spacecraft to our friendly neighborhood star to get some answers.

The east bank of the North Shore Channel has been stripped of foliage between Foster and Bryn Mawr avenues, to be replaced with native species. Neighbors say the project has laid bare “eyesores” on the opposite bank.

Sen. Dick Durbin and Mayor Lori Lightfoot held a joint news conference Friday to call for federal funding to manage and protect the region’s vulnerable shoreline.

Mayor Lori Lightfoot has asked Gov. J.B. Pritzker to issue a state proclamation that would free up additional funds and resources for recovery from January’s severe storms.

Last month, Lake Michigan was about 3 inches higher than the previous January record in 1987, according to the National Oceanic and Atmospheric Administration. How the record-setting levels can affect Chicagoans.

A 30-second spot from Dakota Access ran at least twice during Sunday’s broadcast of the big game on FOX. Here’s why.