Hey Ray: Hot and cold breath
Have you ever noticed that your breath can both warm and cool things down? There is a science behind that!
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Have you ever noticed that your breath can both warm and cool things down? There is a science behind that!
Lisa Emery, a respiratory therapist, is deeply concerned about West Virginia coal miners suffering from black lung disease.
The first supermoon of 2025 will arrive soon. Here's what to know about the phenomenon.
Scientists have discovered prehistoric insects preserved in amber in South America for the first time.
The sun has become more and more active over the last 16 years, in a turn that surprised scientists and could affect space weather, NASA said.
"Shark Week" is an annual summertime tradition. So, we called on the experts at Mad Science Pittsburgh to teach us more about these fascinating fish! It's a lesson we really sank our teeth into!
NASA has discovered 3I/ATLAS, an interstellar comet that's wandered into our backyard.
The move is part of the government's plans for protecting the U.S. from the New World screwworm fly, which could devastate its beef industry and even kill household pets.
The latest selfie by NASA's Perseverance rover at Mars has captured an unexpected guest: a Martian dust devil.
The universe is poised to die much faster than previously thought, according to new research by Dutch scientists.
A large brood of periodical cicadas is due to emerge in the spring of 2025. These maps show where people should expect to see and hear the bugs this year.
A notably large brood of periodical cicadas will emerge from the underground across parts of the eastern U.S. this spring.
Thanks to a mouse watching clips from "The Matrix," scientists have created the largest functional map of a brain to date.
The first day of spring, also known as the vernal equinox, has arrived in the Northern Hemisphere on March 20, 2025.
National Pi Day is recognized today in the U.S. and around the world. Here's what to know about the quirky holiday, and how to celebrate.
Colossal Biosciences has focused on identifying key traits of extinct animals by studying ancient DNA, with a goal to genetically "engineer them into living animals," said CEO Ben Lamm.
Using the different sides of aluminum foil has been a discussion having some wonder if it makes a difference.
A fun way to collect money can be done through a swirling motion in a money vortex.
Meteorologist Ray Petelin explains how Sun dogs or rainbow colored spots appear in our sky.
It was full STEAM ahead on PTL today. We got to bend the laws of time and space with Ray and Elizabeth Petelin, from "Hey Ray!" This segment was sponsored by Thermo Twin.
Meteorologist Ray Petelin and his daughter Elizabeth take a viewer question this week and explain what Gravity Waves are. Here is this week's Hey Ray!
The sun is often referred to as a ball of fire in the sky, but is it actually on fire?
Have you ever noticed when you see a wheel moving at high speed it looks like it is going backward?
Have you ever met an astronaut, or piloted a Mars Rover? Those are some of the things you can do at Pittsburgh's inaugural SpaceBurgh Festival in Market Square.
Boaz was in Market Square this afternoon to get a sneak peek at SpaceBurgh!
Bucks County officials say the two people killed after explosions at a Bristol nursing home were a resident and a staff member.
Here's a recipe for David's holiday lemontini!
NORAD, the North American Aerospace Defense Command, tracks Santa's Christmas Eve flight around the world each year. Follow a live map of the tracker here.
A community came together on Tuesday to remember a man shot and killed in Pittsburgh's Carrick neighborhood last week.
A 2-year-old girl was killed in a "non-intentional shooting" at a home in Columbus, Ohio, police said.
Bucks County officials say the two people killed after explosions at a Bristol nursing home were a resident and a staff member.
NORAD, the North American Aerospace Defense Command, tracks Santa's Christmas Eve flight around the world each year. Follow a live map of the tracker here.
A community came together on Tuesday to remember a man shot and killed in Pittsburgh's Carrick neighborhood last week.
A 2-year-old girl was killed in a "non-intentional shooting" at a home in Columbus, Ohio, police said.
The Toronto Maple Leafs picked up a 6-3 win over the Pittsburgh Penguins on Tuesday.
Gov. Mike DeWine has signed legislation eliminating Ohio's four-day grace period for late-arriving mail-in ballots.
The Justice Department early Tuesday released more than 11,000 additional documents and photos from the Jeffrey Epstein files.
With revenue declining and costs increasing, council members said they reached a compromise.
If caught and seized, it would be the third Venezuelan tanker taken by the U.S. this month.
Pittsburgh City Council heard hours of public testimony Saturday as it prepares to vote on a 2026 budget, while facing a $20 million deficit.
Pennsylvania will receive nearly $7 million as part of a nationwide settlement with Mercedes-Benz USA.
People in Armstrong County communities like Worthington and Kittanning say they're not getting packages they ordered weeks ago from Amazon.
As more data centers are approved in southwestern Pennsylvania, state lawmakers are taking steps to make sure the centers pay their fair share and are good neighbors in their communities.
If you haven't sent gifts in the mail yet, you don't have much time left.
The Pittsburgh International Airport is getting nonstop flights to Dublin next year.
We received almost 2,000 pictures of your pets enjoying the holidays, so we're going to show you as many as we can in less than a minute.
Sean Collier is back with another edition of the PTL Weekend Guide!
Heather went behind the scenes at one of the latest PassPass Pittsburgh money drops.
The countdown to Christmas is officially on, and showing up empty-handed is not an option. Chef Crystal is serving up a showstopper with these crab cake stuffed shrimp.
We're back for another round of What's It Worth with Dr. Lori.
Health care workers say a powerful new street drug is clogging Pittsburgh-area emergency rooms with people suffering from violent withdrawal symptoms.
Seven employees of the Allegheny County-run Kane Community Living Centers in Scott Township have been under investigation.
Veterans are outraged after learning about damage done to gravesites at a cemetery in Fayette County.
Artificial intelligence is watching where people park in Pittsburgh.
Drivers who were convicted of infractions years ago are being told to surrender their licenses or file costly appeals because Allegheny County never processed the paperwork.
Health care workers say a powerful new street drug is clogging Pittsburgh-area emergency rooms with people suffering from violent withdrawal symptoms.
Millions of people with an Affordable Care Act health plan face a massive jump in premiums next year — this chart shows just how much.
A Pennsylvania man visited Penn to thank the surgeon who saved his life during a stroke.
NFL players say they will continue with dry-needling sessions despite a recent incident involving the Pittsburgh Steelers' T.
What is dry needling? Here's what you need to know about the treatment.
The Toronto Maple Leafs picked up a 6-3 win over the Pittsburgh Penguins on Tuesday.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
The Pittsburgh Pirates have agreed to a two-year deal with All-Star Ryan O'Hearn to boost their struggling offense.
For the 25th consecutive season, the Steelers are sending multiple players to the Pro Bowl Games.
Brandon Lowe, a two-time All-Star second baseman, is ready to make an impact in Pittsburgh after the Pirates acquired him from Tampa Bay.
There won't be a Westmoreland County Airshow next year because of construction at the Arnold Palmer Regional Airport.
The Pittsburgh International Airport is getting nonstop flights to Dublin next year.
Members of the Newspaper Guild of Pittsburgh voted last week to end their three-year-long walkout.
Norfolk Southern railroad worked with the state of Ohio and Youngstown State University to revive plans for a $20 million first responder training center near the site of the worst derailment in a decade in East Palestine, Ohio.
A report on the future of water in central Ohio warns that industrial demands for water will skyrocket at the same time experts expect farmers will need to regularly irrigate their fields.
The singer said an MRI showed a cancerous spot on one of his lungs after he recovered from a lengthy bout of bronchitis.
Comedian and actor Bowen Yang performed his final sketch on "SNL" Saturday night, after announcing his unexpected mid-season exit from the show.
A court in Romania has sentenced American rapper Wiz Khalifa to nine months in jail on drug possession charges.
Pittsburgh-area natives Joe Manganiello and Caitlin O'Connor have moved from Hollywood to Mt. Lebanon.
The special features interviews with Kathy Bates, Annette Bening, Albert Brooks, Michael Douglas, Kiefer Sutherland, Jerry O'Connell and Mandy Patinkin.
KDKA-TV's Rich Walsh and 93.7 The Fan's Andrew Fillipponi discuss the sports topics of the day.
A man was shot in Beechview on Tuesday night.
A community came together on Tuesday to remember a man shot and killed in Pittsburgh's Carrick neighborhood last week.
Stay on top of local weather with First Alert Meteorologist Trey Fulbright's forecast!
The holiday market in Downtown Pittsburgh is seeing high foot traffic still.
Pitt's regular season has ended with an 8-4 record.
Pitt's five-game winning streak came to an end with a 37-15 loss to Notre Dame.
Mason Heintschel set a new Pitt freshman single-game passing record in the Pitt win at Acrisure Stadium.
The 44th annual KDKA-TV Turkey Fund will help our neighbors in need have a nice meal for Thanksgiving.
West Virginia scored a late touchdown to tie the game and then beat Pitt in overtime to win the 108th Backyard Brawl.
