Learn why the Sun’s magnetic field is just as important as Earth’s and its impact on our planet.

Learn more about the Vikings, their lifestyle, and where the stereotypical horned helmet originated from.

Learn why socializing, especially around the holidays, can leave you feeling a bit down.

Learn why Yellowstone mysteriously does not produce sulfur dioxide, and what it means for volcanic unrest.

Learn more about the hidden molecules uncovered in animal fossils from an ancient human site, and the new view they give us ...

Learn how the brain weighs emotional strain when deciding whether to seek information — or shut it out.

Learn how mapping gene-control switches in an ancient sea anemone reveals how identical DNA can produce many different cell ...

Learn how brain recordings reveal a distinct state in which conscious awareness briefly drops out — even while people remain ...

What's the size of the Milky Way galaxy? Learn how, depending on your definition, the size can change.

Learn why killer whales sometimes wear dead salmon on their heads, and what that might mean.