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!
The shooting happened in New Kensington around 3 a.m.
The City of Washington Police Department said that two additional suspects involved in a robbery and shooting late last month are in custody.
The cold temperatures are sticking around through next week, and we could see some snow flurries on Saturday.
Police are searching for a home invasion suspect in Pittsburgh's Squirrel Hill neighborhood.
Two trophy-class antlered white-tailed deer were illegally killed in Forest County, Pennsylvania, the Game Commission said.
The shooting happened in New Kensington around 3 a.m.
The City of Washington Police Department said that two additional suspects involved in a robbery and shooting late last month are in custody.
The cold temperatures are sticking around through next week, and we could see some snow flurries on Saturday.
Police are searching for a home invasion suspect in Pittsburgh's Squirrel Hill neighborhood.
Two trophy-class antlered white-tailed deer were illegally killed in Forest County, Pennsylvania, the Game Commission said.
A Pittsburgh attorney has filed a petition on behalf of the family of a Colombian man killed in a U.S. military strike on a boat in the Caribbean.
Republican Rep. Brian Fitzpatrick said he was readying a plan that would extend the Affordable Care Act subsidies for two years.
President Trump, facing criticism that he's focused more on international issues than kitchen-table concerns, will rev up his domestic messaging, two GOP sources said.
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.
The Trump administration says it will withhold funds for administering SNAP food aid in most Democratic-controlled states starting next week unless they provide data about those receiving the assistance.
Federal funding will finally be available to thousands of families in Pennsylvania to help pay their heating bills.
Electric prices in Pennsylvania are going up next month.
Saturday's grand opening included live music, food, and a meet-and-greet with Lego Master Krist Kay.
Thursday will be the first time many people cook and host Thanksgiving dinner - here's how you can avoid illness and danger.
To much fanfare, the 51st Aldi opened in the Pittsburgh area on Thursday morning.
Heather and David are taking a look back at the week.
The 5th annual PTL Toy Drive is tomorrow!
Downtown Pittsburgh is coming alive with a holiday flair.
For the first time in nearly a quarter century, the Pittsburgh Ballet Theatre is unveiling a brand-new version of "The Nutcracker."
The stars are in town for Steel City Con. Chris DeRose has more about what to expect.
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.
For most students, the most dangerous part of their day is going to and from school.
Shopping malls are under threat from online shopping and disappearing customers, and many are facing the wrecking ball.
A CDC vaccine panel voted to stop recommending the birth dose of the hepatitis B vaccine.
Western Pennsylvania counties are seeing vaccination rates fall among school-aged children.
The discussion happens every year: shoveling snow can lead to heart attacks, and one AHN cardiologist explains why it's a risk.
A little boy from Delaware County is getting his once-in-a-lifetime wish, just in time for the holidays.
Consumers with the imported pans should throw them away due to the severe health risks posed by lead, the agency warns.
Matt Campbell was hired as Penn State's coach, ending a two-month search by the Nittany Lions to find James Franklin's successor.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
The Panthers and Badgers' 2026 game has been canceled, but the schools will meet in Dublin in 2027.
Skenes and Dunne joined a two-day USO Tour and visited sailors abord the USS Gerald R. Ford and the USS Mahan.
It all starts Friday night at the Petersen Events Center in Oakland.
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 U.S. Department of Energy says it's loaning $1 billion to help finance the restart of the nuclear power plant on Pennsylvania's Three Mile Island.
A new Barnes & Noble is coming to Pittsburgh.
Vanessa Hudgens and former Pittsburgh Pirates player Cole Tucker welcomed their second child.
Christina Aguilera and Liev Schreiber were spotted at Wednesday's Pittsburgh Penguins game at PPG Paints Arena.
Jimmy Cliff, who famously sang about the "many rivers" we all must cross, has died after suffering a seizure and pneumonia, his family say.
Donald Glover, who performs under the moniker Childish Gambino, revealed he suffered a stroke last year, which forced him to cancel his tour.
Fans of Jeff Goldblum are seeing double.
Late on Friday night, the City of Washington Police Department said that two additional suspects wanted for the robbery of the Washington Food Mart were taken into custody.
Stay on top of local weather with meteorologist Mary Ours’s forecast!
Police are searching for a home invasion suspect in Pittsburgh's Squirrel Hill neighborhood.
Stay on top of local weather with First Alert Meteorologist Ray Petelin's forecast!
Air Force Staff Sgt. Andrew Wolfe is "slowly healing" after last week's shooting in Washington, D.C., West Virginia Gov. Patrick Morrisey said Friday.
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.
