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 nighttime freezing temperatures Pittsburgh is experiencing pose a unique risk to people experiencing homelessness.
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.
The Chartiers Valley School District faces a lawsuit over the alleged sexual assault of a student in 2018.
The PIAA football championship games are Thursday, Friday and Saturday at Cumberland Valley High School.
A 63-year-old Philadelphia man pleaded guilty in federal court Thursday for threatening to kill a Pennsylvania election official in 2024, officials said.
The nighttime freezing temperatures Pittsburgh is experiencing pose a unique risk to people experiencing homelessness.
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.
The Chartiers Valley School District faces a lawsuit over the alleged sexual assault of a student in 2018.
The PIAA football championship games are Thursday, Friday and Saturday at Cumberland Valley High School.
A 63-year-old Philadelphia man pleaded guilty in federal court Thursday for threatening to kill a Pennsylvania election official in 2024, officials 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.
Pittsburgh Magazine's Sean Collier tells us about four things to see and do this weekend.
Heather and David are learning about a new eye care option in Cranberry Township, and how screens are adding to your eyes’ wear and tear.
Heather and David are joined by Pamela Mysels from Fine Wine & Good Spirits to learn how to make some seasonable sips!
Mikey is hanging out with Joey Thurby from Neighborhood Ford Store to learn what her car needs, now that winter is here.
Former Steelers quarterback and founder of the Best of the Batch Foundation Charlie Batch is in studio with Heather and David to talk about the PTL Toy Drive, specifically what happens to the gifts once the toy drive is over.
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.
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.
With costs expected to go up for the Affordable Care Act, people are examining potentially more affordable options.
The PIAA football championship games are Thursday, Friday and Saturday at Cumberland Valley High School.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
The Pirates have traded pitcher Johan Oviedo to the Red Sox for outfielder Jhostynxon Garcia as part of a five-player deal.
Highsmith's charitable work in Pittsburgh and across the country made him the Steelers' nominee for the yearly award.
Greenwood was named among five finalists for the 2026 class of the Pro Football Hall of Fame.
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.
The nighttime freezing temperatures Pittsburgh is experiencing pose a unique risk to people experiencing homelessness.
Stay on top of local weather with First Alert Meteorologist Ray Petelin's forecast!
We’re learning about contrast enhanced mammography with UPMC.
We’re reading your answers.
We’re talking with a Pittsburgh couple who has been to all 63!
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.
