It's possible to build a roller coaster as high as the tallest building in the world, the Burj Khalifa. But it could seriously injure or kill...

Large wildfires may be linked to increases in COVID-19 cases and deaths in the San Francisco area, according to a paper in the European Review for Medical and Pharmacological Sciences. Researchers found that between March and September, increases in smoke particles, other wildfire pollutants and carbon monoxide levels corresponded to increases in daily COVID-19 diagnoses and total COVID-19...

Want to know the single best thing you can do to prevent the decline of bird populations? Keep your cat...

Scientists have discovered the first nest of so-called murder hornets in the United States and plan to wipe it out Saturday to protect native honeybees, officials in Washington state said. After weeks of searching, the agency said it found the nest of Asian giant hornets in Blaine, a city north of Seattle near the Canadian border. The world’s largest hornet at 2 inches (5 centimeters) long,...

Doubling up on single-layer cloth masks may be better than one, but the safest homemade masks have three layers, including a nonabsorbent outer...

Blooming algae was behind a recent mass death of sea animals that saw octopuses and seals wash up on the shore off a Russian peninsula, scientists said on Friday in the final conclusion to their...

The Food and Drug Administration's vaccine advisory board said the agency's rules on vaccine trials could lead to unsafe or ineffective...

On Wednesday, North Korea's state-run Rodong Sinmun newspaper warned people of the "danger of invading malicious viruses" inside an approaching...

The group says the water has a radioactive substance amid reports it could be released into the...