|
(Courtesy Lincoln Park Zoo)

About a dozen different species were under close watch during the event as scientists looked for any changes in behavior. 

|

The last time a total solar eclipse spanned the continental United States from coast to coast was 99 years ago. Thousands joined in the Adler Planetarium’s celestial celebration to mark the occasion.

|
(Alex Ruppenthal / Chicago Tonight)

Animal behavior experts noticed the biggest change in one particular species during Monday’s eclipse: humans. 

|

Adler Planetarium astrophysicist Lucianne Walkowicz joins us from the eclipse epicenter in Carbondale. 

,
|

Over the course of civilization, eclipses have been met with fear and superstition. How humans have reacted to—and explained—eclipses throughout history.

|

Videos of the eclipse from Chicago’s Adler Planetarium and multiple spots across the U.S. from NASA, plus safety tips, Chicago watch parties and more.

|
(Peter Roome / Flickr)

Like scientists across the country, Lincoln Park Zoo’s animal experts will spend Monday’s solar eclipse carefully observing the zoo’s residents for changes in behavior.

|
(Courtesy of National Park Service)

What can happen if you look at the sun for too long, even if it’s partially or almost fully blocked? We speak to an ophthalmologist about how to safely watch the eclipse.

|
(Neal Herbert / National Park Service)

Participating in the eclipse is a way for “people to demonstrate that they want to understand the world scientifically,” DePaul sociologist Roberta Garner says. 

|
Phil Ponce watches the eclipse. (Alexandra Silets / Chicago Tonight)

What did you see during the historic event? Add your images to our stellar online gallery.

,
|
A total solar eclipse, which is when the Moon completely covers the Sun, will occur across 14 states in the continental U.S. on Aug 21, 2017. (Credit: NASA)

Join us online for live coverage from Chicago’s Adler Planetarium starting at 11:40 a.m. Heading outside? Here are 12 places in and around Chicago where you can celebrate the eclipse. 

|

For the first time in the United States, scientists edit a human embryo and successfully remove a genetic mutation that causes disease.

|
A total solar eclipse, which is when the Moon completely covers the Sun, will occur across 14 states in the continental U.S. on Aug 21, 2017. (Credit: NASA)

All you need to know to get ready for the coming total eclipse of the sun.

|
(Alex Ruppenthal / Chicago Tonight)

Environmental Protection Agency chief Scott Pruitt said he does not believe in “regulation through litigation,” but his stance appears to be subject to change.

|
(Credit: Three Square Market)

Buying a bag of chips or logging onto your computer with a wave of your hand will soon be possible at one Wisconsin company. 

|

Rabiah Mayas returns to explain why NASA needs your origami skills and other stories from the world of science.