Why does sound travel farther in the cold?
Have you ever stepped outside on a frigid, quiet morning and heard sounds emanating from somewhere far away? It's not your imagination — cold air really does carry sound farther.
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Have you ever stepped outside on a frigid, quiet morning and heard sounds emanating from somewhere far away? It's not your imagination — cold air really does carry sound farther.
James D. Watson, who helped discover the structure of DNA, has died at 97 years old.
Scientists, not content to let a not-so-living legend lie, have determined that the viral Chicago "rat hole" was probably actually made by a different kind of rodent.
The first supermoon of 2025 will arrive soon. Here's what to know about the phenomenon.
Researchers from the University of Chicago and Argonne National Laboratory have devised a new method to detect minuscule levels of PFAs, known as "forever chemicals," in water in a matter of minutes.
Hyde Park Labs, at 5207 S. Harper Ave. north and east of the University of Chicago campus, opened about two and a half months ago — but the grand opening was set for Tuesday.
As the long, warm days of summer transition to a darker, cooler winter, leaves across much of the country put on a dazzling display of colors. But why?
A deer hunter has discovered a rare subtropical wood stork in the wilds of Wisconsin.
Published scientific research fuels the breakthroughs that shape our world — but what happens when that research is totally fake?
This study could predict national trends in life expectancy, researchers say.
Astronomers have discovered a mysterious new object in our Milky Way, which is emitting X-rays and radio waves at the same time.
For decades some of the city's brightest students have shown their very best at the Chicago Public Schools science fair, but a Lane Tech senior stole the spotlight this year.
A Wisconsin man has been bitten by snakes hundreds of times, and scientists are studying his blood to treat snakebite.
Wendy Freedman and her team have been able to measure the expansion of our universe, leading to more insights into the cosmos.
Researchers recently captured the first live footage of a colossal quid in its natural habitat, thousands of feet under the sea near Antarctica.
If you've been watching "The White Lotus" you probably remember a tree with poisonous seeds featured around the Thai resort where the most recent season was set.
The first day of spring, also known as the vernal equinox, has arrived in the Northern Hemisphere on March 20, 2025.
"An asteroid this size impacts Earth on average every few thousand years and could cause severe damage to a local region," the European Space Agency said.
The expedition's goal is to help preserve one of the most untouched, biodiverse areas left on Earth.
"Sue in the Flesh" shows visitors what the famous T. Rex would have looked like 66 million years ago.
Sue is back at Chicago's Field Museum, but it's not the dinosaur skeleton fans have come to know and love. But the museum now features a new way to see the world-famous reptile with "Sue in the Flesh." The model was created at the Field Museum in 2019, but left to tour in 2020.
The asteroid was discovered in August and is set to become a mini-moon, spinning around Earth in a horseshoe shape for about two months.
Scientists have revealed fossils of a giant salamander-like beast with sharp fangs that ruled waters before the first dinosaurs arrived.
Scientists monitoring 51 chimpanzees saw sick or injured animals eating certain plant items that were not part of their normal diet.
Humanitarian aid groups are pausing their work after 7 World Central Kitchen workers were killed in Gaza. But Chicago-based MedGlobal says now is not the time to leave.
Just as a trial was set to begin this week in Chicago, Boeing agreed to a settlement with a Canadian man who lost six family members in a 737 Max 8 plane crash in Ethiopia in 2019.
Repairs on the State Street Bridge over the Chicago River are expected to be completed late this winter, the Chicago Department of Transportation announced Wednesday.
Chicago weather Wednesday morning took a sudden turn for the worst, and a Snow Squall Warning was issued. But what is a snow squall?
A CTA Brown Line train hit a car in Chicago's Ravenswood Manor neighborhood.
It has been months since the Chicago City Council approved a plan to update the way a roughly two-mile stretch of Broadway in the Edgewater and Uptown neighborhoods is zoned.
It has been months since the Chicago City Council approved a plan to update the way a roughly two-mile stretch of Broadway in the Edgewater and Uptown neighborhoods is zoned.
Rick Garcia, a longtime Chicago LGBTQ+ activist and community leader who was at the forefront of many civil rights victories, died this week.
Republican Rep. James Comer of Kentucky, the committee's chairman, said the panel will move next week on holding them in contempt.
The Supreme Court heard two cases involving laws from Idaho and West Virginia that ban transgender athletes from participating in girls' and women's sports.
The group of journalists who won a preliminary injunction over federal agents' use of force have filed to have the same judge hear the state's new lawsuit against the Trump administration.
Police in the west Chicago suburb of Geneva are warning of a scam involving spoofed phone numbers.
Protesters on Tuesday were cranking up the heat on Peoples Gas over a recently proposed rate hike that would add an additional $10 to $11 a month to utility bills.
A lawsuit filed late last month took Chicago-based McDonald's to task over the McRib sandwich, calling its name a form of false advertising.
As this holiday season nears its end, Illinois Treasurer Alexi Giannoulias issued a warning Tuesday about text scams.
A new report shines a light on electricity shortages that Illinois could face in less than 10 years.
January is Radon Action Month, and the Cook County Department of Public Health is urging residents to test their homes for radon.
Severe flu season is sending many people to hospital emergency rooms across the country, including in the Chicago area.
Unionized health care workers this week took aim at Northwestern Medicine, saying the health care system needs to hire more people before expanding the emergency room at Northwestern Memorial Hospital.
The Illinois Department of Public Health announced Tuesday that its recommendations for childhood vaccines will not be affected by a change in federal guidelines.
The first pediatric flu death for this year's flu season has been reported, Illinois health officials said, as flu cases across the state continue to rise.
Does the Chicago Bears' dramatic improvement this season, culminating in their first playoff run in five years, change the discussion about where they will build a new stadium?
The Piggery, a popular barbecue restaurant and bar in the northwest corner of Chicago's Lakeview neighborhood, announced Thursday that it is going out of business.
The Lincolnwood Town Center mall in the north Chicago suburb of Lincolnwood has been sold to a developer, the village announced Wednesday.
They do say imitation is the sincerest form of flattery, but a longtime Chicago fried chicken institution said imitation went too far after a new business opened with a very similar name.
A lawsuit filed late last month took Chicago-based McDonald's to task over the McRib sandwich, calling its name a form of false advertising.
Scott Adams, the cartoonist who created the "Dilbert" comic strip, has died at the age of 68, his first ex-wife revealed on Tuesday.
Here is everything you need to know about how to watch and stream the 2026 Golden Globes.
Bob Weir wrote or co-wrote and sang lead vocals on Grateful Dead classics including "Sugar Magnolia," "One More Saturday Night" and "Mexicali Blues."
Chicago Theatre Week brings value-priced tickets for shows from Feb. 5 until Feb. 15 at Chicago's stage venues. Tickets can sell for $30, $15, or even less.
Isiah Whitlock Jr. is perhaps best known for his role as state Sen. R. Clayton "Clay" Davis on HBO's "The Wire."
A CTA Brown Line train hit a car in Chicago's Ravenswood Manor neighborhood.
Just as a trial was set to begin this week in Chicago, Boeing agreed to a settlement with a Canadian man who lost six family members in a 737 Max 8 plane crash in Ethiopia in 2019.
Claudette Colvin, who refused to move seats on a bus before Rosa Parks, has died at 86 years old.
The department warned borrowers who have defaulted on their student loans that money from their paychecks could be withheld if they don’t pay off their debt. CBS News Business Analyst Jill Schlesinger explains.
Chicago weather turned from regular winter to sudden white out conditions as a snow squall hit the city during the Wednesday morning commuter.
A CTA Brown Line train hit a car in Chicago's Ravenswood Manor neighborhood.
Chicago weather Wednesday morning took a sudden turn for the worst, and a Snow Squall Warning was issued. But what is a snow squall?
Sudden snow showers and wind Wednesday morning prompted Chicago weather advisories and a Snow Squall Warning, snarling the morning commute.
Just as a trial was set to begin this week in Chicago, Boeing agreed to a settlement with a Canadian man who lost six family members in a 737 Max 8 plane crash in Ethiopia in 2019.
Repairs on the State Street Bridge over the Chicago River are expected to be completed late this winter, the Chicago Department of Transportation announced Wednesday.
Lead-based paint was banned for serious health reasons in 1978, but most homes built before then remain covered in it.
Fire department officials in Chicago's western suburbs said drone technology has been helping keep firefighters safe and make a major impact on public safety.
With the stores becoming a common target for thieves, some of the stores in the Chicago area are taking new steps to fight back.
As thousands of people are expected downtown for New Year's Eve celebrations, Mayor Johnson, the Chicago police, and the Office of Emergency Management and Communications are trying to get out ahead of any safety concerns.
Cameras not working, video evidence missed by police and a psychic that leads a hit and run victim's son to a clue that changes the case
Steve Buzil with SitClose Tickets was outside Soldier Field doing another media interview about ticket sales on Sunday when he came across Ruth and Mikey.
Ramova Theater in Bridgeport is setting up for a Bears vs. Rams watch party for thousands of fans Sunday.
The Chicago Bears are on a hot streak, which means fans looking for tickets to Sunday's playoffs game are a target for scammers and fraudsters.
Sports experts said there may be some advantages they have on their side to keep the playoff winning streak going.
Johnson made it clear that he didn't like the Packers in a locker room video following their Wild Card win.
A man was left in critical condition Tuesday morning after he was shot while driving in Chicago's Little Village neighborhood and went on to crash his car.
Adam Beckerink, the man charged with murder in the death of his estranged wife, Caitlin Tracey, must return to court later this week for a detention hearing after being extradited to Chicago.
A man has been charged with stabbing a CTA passenger to death while the victim was sleeping on a Blue Line train over the weekend in the Loop.
The state of Illinois and city of Chicago are suing the Trump administration and Department of Homeland Security for unlawful use of force and dangerous tactics in immigration raids.
A man and a 6-year-old boy were stabbed in Chicago's Lincoln Park neighborhood Sunday night.
