Mountaineer Garrett Madison has summited Mt. Everest 14 times and seen tons of trash accumulate over the years. So he decided to do something about it.
NASA plans to launch a mini satellite into Earth's orbit that could revolutionize astronomy as we know it.
A new study warned that internet satellites like Starlink's could send damaging chemicals into the ozone layer when they burn up on reentry.
Maria Estrada worried her son was playing too many video games, but soon he was also flying drones, building rovers, designing AI, and winning awards.
Giraffes have the longest necks of any living animal today, but scientists debated why for over a century. A new study may finally have the answer.
Jeff Bezos dreams of a future where a trillion humans live in the solar system. But experts are skeptical.
Countries are trying everything to combat declining fertility rates, with some eye-popping approaches, but experts say no one has solved the issue.
The H5N1 bird flu virus is changing and getting more opportunities to adapt to humans. Experts are worried that it could soon become transmissible.
Researchers used AI to determine that wild African elephants likely have names for each other, suggesting a capacity for abstract thought.
NASA's Mars Reconnaissance Orbiter imaged a hole on Mars in 2022 that recently resurfaced, reigniting the conversation about these mysterious features.
Two successive shark attacks in Walton County, Florida, left three injured on Friday, with two in a critical condition.
Researchers studied different cat breeds to find which live the longest. Burmese and Birmans live about 14 years, two years longer than the average.
This summer, the Northeast US could face an invasion of colorful Joro spiders, whose legs can reach up to 3 inches, as they spread from the southeast.
Scientists just released the first comprehensive survey of the Cascadia Subduction Zone, the most dangerous earthquake-producing fault in the US.
Scientists studied ancient humans and learned humans and Neanderthals started interbreeding 47,000 years ago, which still impacts our DNA today.
New York researchers say they have studied the first reported case of TMVII, which is found to often affect men who engage in sex with other men.
"Super puff" WASP 107b confused scientists for years. Now, two independent teams of astronomers think they finally understand its mysterious origins.
Starship started falling apart as it plummeted into the ocean. But Elon Musk and SpaceX still consider the flight a huge success.
Research found signs of ancient viruses in Neanderthal DNA that they may have gotten from ancient humans and could have contributed to their extinction.
Starship already proved it could fly into space. Now it's shown the world it can come back in mostly one piece. The next step involves giant chopsticks.
Space elevators are just theoretical at this point, but a Japanese company hopes to build one in the next 25 years for $100 billion.
What makes a city most at risk of a water shortage isn't how much water it has access to. It's how that available water is managed and distributed.
Boeing's Starliner spacecraft finally took off on its crewed mission on Wednesday after being plagued by delays.
Three boys were fossil hunting in North Dakota when they made the ultimate find: a young T. rex skeleton, now known as Teen Rex.
The H5N1 avian-flu virus has its third known infection in a US farmworker. Unlike previous patients, this one had a cough. That could be a bad sign.
We know that moving our bodies is good for us. So what keeps us from doing it?
A new study found there's high potential for Canadian super pigs, a cross between a wild boar and domestic pig, to invade the US in four states.
Jason Cooper discovered a stegosaurus on a birthday walk on his property in May 2022. The fossil is about 70% complete and could fetch $6 million.
In her new book, "Slouch: Posture Panic in Modern America," Beth Linker traces the history of Americans' misguided obsession with posture.
Archaeologists used high-tech methods to find a strange L-shaped structure in Giza, Egypt. Above ground, it was impossible to tell anything was there.
Archaeologists debate when the first humans arrived in the Americas. Controversial 22,000-year-old stone tools are one of the latest discoveries.
A "large number" of Russian experts had entered North Korea to help with its space program, Yonhap reported, citing a senior South Korean defense official.
The German cockroach, one of the most common household pests, adapted to thrive in human dwellings about 2,100 years ago, according to a new study.
Getting humans to Mars has been on the minds of leading scientists and engineers since the '50s, but for one reason or another, no one can manage it.
This year could the worst hurricane seasons in history, experts predict. A coastal engineer shares how he protected his home during Hurricane Harvey.
Beth Linker, author of "Slouch: Posture Panic in Modern America," says one-step posture-fixing products aren't the best solution
NASA and Boeing said a helium leak won't stop two astronauts from launching into space next week in a mission more than a decade in the making.
NASA's James Webb Space Telescope spotted three galaxies forming when the universe was about only 400 million to 600 million years old.
Hawaii's green sea turtles are dying from mysterious tumors. Maddux Alexander Springer spent 400 hours diving and working with a lab to find out why.
Nantucket is a billionaire holiday hot spot, but erosion is making homes fall into the ocean. That hasn't stopped the wealthy from buying properties.
Two 17-year-olds created a new device to successfully filter microplastics from water using ultrasonic sound waves and won $50,000 for their work.
At least 75 of Alaska's waterways are turning orange in the summer, with some so acidic they're comparable to lemon or orange juice, researchers say.
The International Science and Engineering Fair is a huge competition with big money on the line. Its CEO shares the biggest mistake parents can make.
Mexico's ongoing heat wave has been linked to the deaths of at least 26 people since March, the Associated Press reported.
Analysts ranked the 50 US states by risk of dog and cat diseases. Here are the diseases to watch out for where you live.
Scientists have found evidence that Einstein's general theory of relativity doesn't quite work in the distant universe.
In 1980, Mount St. Helens erupted, killing dozens and forever changing how the US monitors earthquakes. The volcano is still active but not erupting.