The coffee cup on a string experiment | Hey Ray
You've heard of ground coffee, but what about a coffee cup falling to the ground?
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You've heard of ground coffee, but what about a coffee cup falling to the ground?
You may have heard we're getting a mini-moon soon, but that begs the question...will we be able to see it?
One viewer asks - why can we sometimes see the moon during the day?
As the air gets colder, it's important to test for Radon.
We often perceive the sun to be yellow, but is it actually?
We've all put popcorn kernels on the stove or in the microwave, but why and how do they pop?
Western Pennsylvania has several creeks and rivers in our area, so what is the difference?
We've got a mystery to solve! Why does it seem like you can only hear the train whistle at Fallingwater when it's going to rain?
Hey Ray, why is it when it gets too hot, airplanes cannot fly?
If you've ever noticed a difference in humidity from higher vegetation to lower vegetation, it's something known as "corn sweat."
Using just some markers, water, and plastic bags, we can make art disappear!
Even when you aren't moving, you're still moving through the universe at a pretty incredible rate!
An old idea says you should open windows before a tornado to equalize the pressure, but does that work?
On beautiful days full of sunshine, sometimes some puffy clouds develop that look like cotton balls.
We often hear the terms 50-year and 100-year floods but what exactly do those terms mean?
Science can often surprise you! Meteorologist Ray Petelin has a cool inertia experiment where the result may be the opposite of what you think!
It's common to see icicles hanging from roofs or awnings, but can they form sideways? The Barton Family saw just that, and Ray Petelin explains how it may have happened!
When rivers, lakes, and ponds freeze over, it's natural to want to go play on them, but checking them for safety is important. Ray Petelin explains what you need to do to make sure you don't fall through.
When we get large snowfalls, the same question gets asked - why is snow white but when it melts, it's clear? Ray Petelin answers that in a new Hey Ray!
KDKA meteorologist Ray Petelin uses science to debunk some popular conspiracy theories.
Places, people, and things have a variety of reasons for why they are named the way they are, but have you ever thought about why the Arctic and Antarctic have their names? Ray Petelin has and he explains it in a new Hey Ray!
Whenever snow falls in Pittsburgh, you hear the same refrain: milk, bread, and toilet paper, but do we really need to have those in our home? Ray Petelin makes sure you know how to prepare when snow is coming!
While we may dream of a White Christmas in the 412, the weather is often much more interesting than that. Ray Petelin explains in a new Hey Ray!
Every generation when they get older love to brag about how much snow they had to deal with as a kid, but which Pittsburgh generation has the bragging rights? Ray Petelin breaks it down!
Did you ever notice your breath can heat and cool things? Meteorologist Ray Petelin shows us the science of how that works!
Forbes' latest ranking of the world's richest people has been released, and the list features billionaires with ties to Pittsburgh.
The Baltimore Ravens have backed out of the trade that would have brought in star pass rusher Maxx Crosby from the Las Vegas Raiders.
A controversial decision in Fayette County is raising concerns about emergency response.
The annual KDKA Fish Fry Guide is back for Lent! Check our listings for a 2026 fish fry near you in Pittsburgh.
The reverend in charge of the largest cathedral in the Episcopal Diocese of Pittsburgh is accused of stealing more than $1,000 worth of baseball trading cards.
Defense Secretary Pete Hegseth said Tuesday that it would be the "most intense day" of strikes against Iran so far.
President Trump told CBS News the U.S. war with Iran is "very complete," and said the U.S. "could do a lot" about the Strait of Hormuz.
Live Nation, the parent company of Ticketmaster, has reached a deal with the Department of Justice as part of a high-stakes antitrust trial.
The preliminary U.S. intelligence assessment suggests that the U.S. is "likely" responsible for the bombing of the girls' school in Iran on Feb. 28.
Energy Secretary Chris Wright said "what you're seeing is emotional reactions and fear that this is a long-term war." He stressed that "this is not a long-term war."
The Pennsylvania Treasury will hold a public auction for unclaimed goods on Wednesday, March 25.
Pittsburgh gas prices have spiked in the last week, but how high exactly will they rise in the coming weeks?
A Pittsburgh-area man is not just giving people living with ALS a voice, he's giving them their own voice.
An investigation into fraudulent vehicle inspections has led to dozens of charges against a Pittsburgh-area auto shop owner and his mechanic, police said.
There are always deals to be had at places like Sam's Club and TJ Maxx, but there are ways to get even bigger discounts.
It's time for our annual March Madness bracket, and this year it's the battle of who has the best wings in western Pennsylvania.
Padma Lakshmi is backin the arena with a fresh twist on the culinary showdown.
Daisy is visiting Neubauer's Flowers with a sneak peek at its spring open house.
Dr. Lori is back to play What's It Worth?
Backpacks can be surprisingly chaotic. Here are some simple tips to make it less frustrating.
More homeowners than ever in Allegheny County are filing appeals to try to lower their property taxes.
A cancer once rare in young people has become the number one cause of cancer-related deaths for Americans under age 50.
There is cautious optimism on the North Shore that the Pittsburgh Post-Gazette may continue to publish under new ownership.
From freshly washed cars to air conditioning units to entire porches, dust is blanketing one Westmoreland County neighborhood.
Former patients of Dr. Carl Medgaus are running out of time to try to recover money for unfinished dental work.
A Pittsburgh-area man is not just giving people living with ALS a voice, he's giving them their own voice.
A cancer once rare in young people has become the number one cause of cancer-related deaths for Americans under age 50.
Fish fries can be a quandary for people with heart and other medical issues.
With a measles outbreak in Pennsylvania, local health experts want to send a message to families.
Cracking down on the price of prescription drugs is a hefty task.
The Baltimore Ravens have backed out of the trade that would have brought in star pass rusher Maxx Crosby from the Las Vegas Raiders.
Western Pennsylvania has historically been a hotbed for producing talent that succeeds in the NFL.
With just over six weeks until the NFL Draft gets underway in Pittsburgh, only around 32% of properties made available have been rented out.
Orlando Lovejoy had 21 points and Lance Stone came off the bench to score 16, leading Detroit Mercy to a 70-64 victory over Robert Morris in a Horizon League Tournament semifinal.
Kenny Pickett will be joining his fifth different NFL team as he heads into his fifth season in the league.
Forbes' latest ranking of the world's richest people has been released, and the list features billionaires with ties to Pittsburgh.
A fire chief says a fire at an Ohio hog farm complex has killed about 6,000 pigs and unleashed a large plume of smoke that could be seen for miles.
Lawmakers in Harrisburg are looking at bills to tackle dynamic pricing.
The budget airline Breeze is launching a new nonstop route from Pittsburgh to Myrtle Beach this summer.
The lawsuit accuses Nippon of prioritizing revenue over worker safety.
A woman was arrested on Sunday for firing multiple shots at the Beverly Hills home of Rihanna, Los Angeles Police Department officials say.
The countdown is on, as the NFL Draft comes to Pittsburgh and America turns 250 years old.
Hillary Knight, Megan Keller and Jack and Quinn Hughes made a surprise appearance during "Heated Rivalry" star Connor Storrie's opening monologue on "SNL."
The medical drama "The Pitt" has certainly put a lot of eyes on Pittsburgh, and while the stories are fiction, the show highlights some very real things about the city.
Streaming giant Netflix declined to match Paramount Skydance's $31 per share offer for Warner Bros. Discovery.
Pittsburgh Mayor Corey O'Connor honored Pittsburgh EMS members for their efforts during a rescue on the Mon River in January.
A controversial decision in Fayette County is raising concerns about emergency response.
The reverend in charge of the largest cathedral in the Episcopal Diocese of Pittsburgh is accused of stealing more than $1,000 worth of baseball trading cards. Andy Sheehan reports.
Stay on top of local weather with First Alert Meteorologist Ray Petelin's forecast!
What started as a routine Amazon delivery to a rural home in Ligonier Township on Monday night quickly escalated, with a man saying he drew a gun and chased the driver down. Chris DeRose reports.
Mike Tomlin stepped down as head coach of the Pittsburgh Steelers after 19 seasons with the team.
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.
