Global

The U.S. Centers for Disease Control and Prevention tightened rabies regulations for dogs coming into the country. The new regulations, which went into effect August 1, come as the temporary …

The CDC has tightened rabies regulations for imported dogs. Here’s why Read More

Jupiter’s signature feature — its Great Red Spot — might not be the same dark spot seen on the giant planet more than three centuries ago. From 1665 to 1713, …

Jupiter’s Great Red Spot may be less than 200 years old Read More

Slimy heralds of hope are hopping around Yosemite National Park. Being a frog hasn’t been easy in the High Sierra or in many other places ever since a fungal parasite …

A frog’s story of surviving a fungal pandemic offers hope for other species Read More

Sometimes science fiction does inspire science research. À la Jurassic Park’s entombed mosquito, scientists have developed a method to store DNA in an amberlike material and still extract it easily …

Jurassic Park inspires a new way to store DNA data Read More

NASA’s Perseverance rover has bagged its first hint of ancient microbes on Mars. “We’re not able to say that this is a sign of life,” says Perseverance deputy project scientist …

NASA’s Perseverance finds its first possible hint of ancient Mars life Read More

Waterpower may have given a big lift to builders of Egypt’s oldest known pyramid, the nearly 4,700-year-old Step Pyramid of Djoser at Saqqara. Ancient architects built a hydraulic system for …

Was Egypt’s first pyramid built with hydraulics? The theory may hold water Read More

In A.D. 79, a massive volcano in southern Italy suddenly, explosively awoke, leading to one of the ancient world’s deadliest natural disasters. Ash and gas from the eruption killed at …

Earthquakes added to Pompeii’s death toll Read More

Nuclear power of the future is going to need fuel. That has governments, energy companies and nuclear engineers clamoring to get their hands on HALEU: high-assay low-enriched uranium. HALEU (pronounced …

4 questions about the uranium needed for next-generation nuclear reactors Read More

The star marking true north is a good deal heavier than we thought. The North Star is 5.1 times as massive as the sun, astronomers report in work submitted July …

The North Star is much heavier than previously thought Read More

Alzheimer’s disease is hard to diagnose. But proteins in the blood might provide clarity. A series of recent findings, presented at the annual Alzheimer’s Association International Conference in Philadelphia and …

Alzheimer’s blood tests are getting better, but still have a ways to go Read More