Science Friday

A new study suggests that the asteroid that killed the dinosaurs may have originated from the outer parts of the solar system. And, invasive spotted lanternflies often lay eggs on vehicles and shipped goods. Now researchers are training dogs to sniff them out before they hatch. Asteroid That Killed The Dinosaurs Was A Carbon-Rich Rock Around 66 million years ago, an asteroid slammed into the Earth...

Eels have fascinated humans for thousands of years, even captivating big thinkers like Aristotle and Freud. Despite having been around for some 200 million years , eels are still rather mysterious creatures. For example, scientists still aren’t sure exactly how they spawn. But those unanswered questions haven’t stopped humans from wanting to eat them. So much so that they’re now endangered in some...

Did you know that almost every star you see in the night sky has at least one planet orbiting it? Here’s something even wilder: There are some celestial bodies that look a lot like planets, but just float around freely in the cosmos, unattached to any particular star. They’re called rogue worlds . With data from the James Webb Space Telescope, astrophysicists just identified six right here in our...

You might have noticed that the seasons don’t quite behave like they used to. In some places, fall and spring seem to fly by, while winter and summer are much longer and feel more intense. This shift is known as season creep, where the timing of the seasons starts to shift . This phenomenon is mostly due to climate change creating temperature imbalances and throwing weather patterns off kilter yea...

Several states have reported cases of the rare but serious mosquito-borne illness eastern equine encephalitis. And, the new sci-fi movie "Slingshot," about an astronaut’s mental breakdown, prompts questions about how to prepare humans for long-term space travel. Mosquito-Borne Diseases Are Spreading As Temperatures Rise This week, a New Hampshire man died of eastern equine encephalitis (EEE), a ra...

Your teeth don’t just chew your food—they connect you to the deepest of deep history on Earth. Teeth have existed, in some form, for half a billion years, making them more than 250 million years older than dinosaurs. They came before the evolution of warm bloodedness, eggs, and even limbs. From that very first set of chompers emerged a bewildering and diverse group of teeth, including narwhal tusk...

According to the Centers for Disease Control and Prevention (CDC), the maternal mortality rate in the United States is very high compared to other wealthy countries: About 22.3 maternal deaths per 100,000 live births. This is on par with China and Iran, based on UNICEF data. So why is the US maternal mortality rate so high? It may have to do with how we fill out death certificates. A study from ea...

There’s a phenomenon known as the “overview effect,” a changed perspective some people experience after seeing the Earth from space. Retired astronaut Dr. Cady Coleman says that for her, it was a sense of home and connection . “First of all, I just don’t feel that far away,” she said. “I feel like home is bigger than we thought and I just happened to be the one of the furthest out people. But the...

Sequoia National Park is largely designated as wilderness. That complicates efforts to protect its iconic trees from worsening wildfires. Also, archaeologists keep finding older and older cave art. Here’s what it could tell us about how humans evolved over time. Protecting Sequoias From Wildfire Raises Tricky Questions Sequoia National Park in California is known for its towering, iconic sequoia t...

A new study measuring microplastics in organs of the recently deceased found that about two dozen brain samples were 0.5% plastic by weight. Also, having an IUD inserted in the uterus is extremely painful for some people. The CDC now recommends that doctors use local anesthetics. Study Finds A Staggering Amount Of Plastic In Human Brains It only takes a quick look at our streets and waterways to b...