Science

Bull’s blood isn’t poisonous; so why did people think it was for centuries?

The asteroid that exploded over Luzon was not a threat—but it was a victory for our planetary defense systems.

When nature’s rarest color shows up in food, it elicits a range of reactions.

The International Space Station is the first permanent human settlement in space—and the perfect setting to understand how our species might create culture off-planet.

The ichnofossil, or trace fossil, is more than 150,000 years old.

An experimental archaeology park lets visitors get a whiff of the island's aromatic past.

An urban explorer ventured deep below downtown in search of Schieks Cave. What he found changed science.

Researchers hauled bins of fish carcasses through bear country to learn how salmon affects plants and pollinators.

Researchers made the surprise discovery when wildfire smoke blanketed their test site.

The Cerutti Mastodon, found near San Diego, shows signs of being butchered 130,000 years ago—but by who? Or what?

The answer eluded scientists for centuries.

We're not so special after all.

The surprising discovery reveals how much we don't know about the deep ocean and its residents.

Who hasn't stopped to marvel over a cool rock along the lakeshore or on the trail? Here's how to learn its backstory.

For more than half a century, the International Astronomical Youth Camp has attracted aspiring astronomers from around the world.

The cause is just as concerning as the color.