Klyuchevskoy volcano in eastern Russia began erupting shortly after a powerful 8.8 magnitude earthquake and several aftershocks shook the same area. "A descent of hot lava is observed on the western ...

One of Australia's biggest and deadliest spiders is actually three different species, researchers discover — and one of these behemoth arachnids is even bigger than the rest. Sydney funnel-web spiders ...

China's Tianzhou-10 mission just delivered embryo-like structures made from living stem cells to the Tiangong space station.

Why it's incredible: The passage is one of the world's most dangerous ocean crossings. The Drake Passage is an ocean channel between the southern tip of South America and the West Antarctic Peninsula.

Acetaminophen — better known as the active ingredient in Tylenol — is an over-the-counter pain reliever. It can be used to help with mild to moderate headaches, muscle aches, backaches, sore throats, ...

Many medieval castles were formidable stone fortifications. Live Science takes a look at six that were never conquered.

Cephalopods are members of a class of marine animals that includes octopuses, squid, cuttlefish and nautiluses. The group includes more than 800 species (and new species are still being found), ...

A "foundational" study found that the brains of children with ADHD matured later, but that finding was likely a mirage tied to issues with how the children were followed over time.

The newly described mosasaur Tylosaurus rex spanned up to 43 feet (13 meters) long and may have been one of the fiercest ...

Dead seal pups on a Canadian island have been found with mysterious spiral-shaped injuries for years. The wounds were thought ...

A technique that has rewritten the timeline of prehistoric art may be overestimating the ages of cave paintings, some ...

In all, 75% of Earth's species went extinct, including the nonavian dinosaurs. So how did some animals ‪—‬ including species ...