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.
A plumbing worker's windshield was damaged Friday afternoon when a chunk of snow or ice fell from a semi-truck in front of him as he was driving in Chicago's far northwestern suburbs.
Students and faculty at the University of Illinois Chicago have been on a mission for the last 15 years, helping to recover the remains of service members who went missing in action decades ago.
As the cold Chicago winter begins and households start staring down rising heating bills, ComEd is launching a new discount for people with qualifying household income to help with their electricity costs.
A beloved store in west suburban LaGrange Park is reopening this weekend after being shuttered for months when a garbage truck plowed through the business.
A Catholic priest from Chicago's south suburbs took an interesting journey, walking from Dolton to New York, a trek of more than 50 days, as he sent a message to immigrant families.
The Supreme Court said Friday it will decide the legality of President Trump's executive order that seeks to end birthright citizenship.
President Trump has led the charge to create more GOP-friendly congressional districts in the 2026 midterm elections.
Illinois Senator Dick Durbin is set to retire in 2026, but before he leaves Congress he is making one last attempt to pass the DREAM Act.
Former Chicago Tribune publisher and editor-in-chief R. Bruce Dold passed away this week.
Authorities say the FBI has arrested a man suspected of placing pipe bombs outside RNC and DNC headquarters on the eve of the Jan. 6, 2021, Capitol riot.
A condo owner in Country Club Hills says he's forced to sell his home after his condo association failed to reimburse him for repairs to his leaking roof. Edward Hadnott's condo has sat empty since a major roof leak in 2022.
The U.S. stopped minting pennies this week, and some groups have issued a warning about the headaches that can create for some businesses and consumers.
Why is one school in the west Chicago suburb of Lisle paying a water bill three times higher than another? The answer has to do with a private utility company.
The Food and Drug Administration is warning about additional cookware brands that could be leaching lead into your food.
Walgreens said it will close its office space in Chicago's Old Post Office building.
The newest measles vaccination numbers released by Chicago Public Schools shows immunizations are finally moving in the right direction.
Two pregnant Black women recently faced alarming neglect at hospitals in Indiana and Texas, highlighting racial disparities in maternal care.
Illinois Gov. JB Pritzker on Tuesday signed a bill aimed at protecting vaccine access in Illinois.
Roseland Community Hospital on Monday celebrated the opening of a new sickle cell treatment clinic.
Consumers with the imported pans should throw them away due to the severe health risks posed by lead, the agency warns.
U.S. Steel says it'll resume making steel slabs at its Granite City Works plant in Illinois amid strengthening demand.
Traffic at O'Hare International Airport is growing faster than expected, and this has Chicago city leaders wanting to make big changes to future construction plans at the airport.
Small Business Saturday was disrupted by the winter storm for many business owners in Chicago, but in the Rogers Park neighborhood, a group of business owners came together to draw customers.
Three different times over the past year, popular and longstanding Chicago stage theater spaces have made headlines for their demise. But it's not all bad news by any stretch.
A federal judge has called out an immigration enforcement agent for using artificial intelligence to write the narrative of a use-of-force report as just a small part of a scathing opinion that rebutted federal officials' narratives about appropriate force used against protesters and others during an ongoing immigration crackdown in Chicago.
Frank Gehry was known for designing the Guggenheim Museum Bilbao in Spain and the Walt Disney Concert Hall in Los Angeles.
Netflix on Friday said it will acquire Warner Bros., including its film and television studios, HBO Max and HBO.
Starting Wednesday, riders on the Chicago Transit Authority system will hear a recognizable Chicago voice during their commutes.
Three different times over the past year, popular and longstanding Chicago stage theater spaces have made headlines for their demise. But it's not all bad news by any stretch.
Joe Colborn, better known as Joe "JoBo" Bohannon on Chicago radio, died this week.
A Catholic priest from Chicago's south suburbs took an interesting journey, walking from Dolton to New York, a trek of more than 50 days, as he sent a message of solidarity with immigrants.
The architecture world is mourning the loss of a giant who had a profound impact on Chicago. Frank Gehry, the renowned architect who designed the Pritzker Pavilion amphitheater at Millennium Park and the BP Pedestrian Bridge connecting Millennium Park to Maggie Daley Park, has died at the age of 96.
The man accused of planting pipe bombs outside major political party headquarters on Jan. 5, 2021, is being ordered to remain in custody.
Meteorologist David Yeomans has the latest First Alert Weather forecast.
Students and faculty at the University of Illinois Chicago have been on a mission for the last 15 years, helping to recover the remains of service members who went missing in action decades ago.
Chicago firefighters were called to a two-alarm building fire near a school on the city's Northwest Side Friday afternoon.
Several tanker cars on a freight train derailed Friday afternoon in the South Deering neighborhood on the South Side of Chicago.
A chunk of falling concrete broke through the windshield of an SUV on Friday afternoon, injuring a driver on the Stevenson Expressway near the Archer Heights neighborhood on the Southwest Side of Chicago.
A plumbing worker's windshield was damaged Friday afternoon when a chunk of snow or ice fell from a semi-truck in front of him as he was driving in Chicago's far northwestern suburbs.
Students and faculty at the University of Illinois Chicago have been on a mission for the last 15 years, helping to recover the remains of service members who went missing in action decades ago.
A Chicago woman battling ALS said she's been struggling just to get a disabled parking space in front of her Bridgeport home.
Days after new Cook County Chief Judge Charles Beach ordered an urgent review of the county's electronic monitoring program, Sheriff Tom Dart said this crisis isn't new, and that he's been warning lawmakers of problems for years.
Charles Beach was sworn in on Monday as Cook County's first new chief judge in 24 years, and takes over amid a political firestorm over what appears to be systemic issues with how accused criminals are being monitored before trial.
Some Chicagoans found out the hard way on Monday that the overnight winter parking ban is in effect.
The electronic monitoring system in Cook County has come under increased scrutiny, after a woman was set on fire in a horrific arson attack on the Blue Line, with critics demanding answers as to why the suspect wasn't already behind bars.
Sitting in 1st-place in the NFC standings isn't the only feel-good story for the Bears, as cornerback Nahshon Wright was named the conference's Defensive Player of the Month.
The Bulls dropped to 9-12 with their fifth loss in a row.
Braeden Bowman forced overtime for the Golden Knights when he put in his own rebound with 2:28 left in the third period.
Caleb Williams plans on picking up right where he left off the last time he faced the Packers.
The Bulls led by as many as 15 points in the third quarter, holding the Magic without a field goal for the first five minutes of the period.
The special edition locket was inspired by the James Bond film "Octopussy," which revolves around a plot to steal a rare Faberge egg.
Authorities say the FBI has arrested a man suspected of placing pipe bombs outside RNC and DNC headquarters on the eve of the Jan. 6, 2021, Capitol riot.
A woman from Chicago's northwest suburbs appeared in court Thursday for a shooting that killed another woman in the South Loop in September.
The man charged with pushing a CTA passenger onto the tracks at a Blue Line station in Chicago's western suburbs on Monday was ordered held in jail, after repeatedly interrupting the judge and prosecutors during his first court appearance on Wednesday.
A divided Wisconsin Supreme Court has agreed to take a case brought by the American Civil Liberties Union on behalf of an immigrant rights group.
